Why Alexa and Pagerank is important for Online Business?

Today I wanna explain about alexa, SEO, and page rank. this conclusions from what I learned about this during those three things, namely the Page Rank, Alexa Rank and SEO. Please understand if I explain in simple and to the extent that I know of course, understand, have absolutely no information technology background.
Page Rank is the value provided by Google with a number from 0 to 10, to each page of our website. This value indicates how important our web value compared with the other. The greater the value we get, the better the results of all searches in the Search Engine. One of the determinants of calculating the value of Page Rank is the number of links that lead to web pages.

Alexa Rank
is a value assigned by Alexa which is calculated based on the number of visits and page views on our website, from all the websites that install the Alexa toolbar. Alexa value is smaller the better, because it shows the high traffic and page views are obtained by the website. Alexa Rank decisive factor is the number of visits and page views are obtained by our website.
SEO stands for Search Engine Optimization. SEO can mean a variety of efforts or a way to get the highest search results using keywords in certain search engines. One factor in SEO is the value of the Page Rank of a website.
“So, I think those three things [Page Rank, Alexa Rank and SEO] intertwined with each other.
The first is the Page Rank. How do we get the value of a high Page Rank? In accordance with my experience, the point is that content is the king. Write setuatu the required people. Or who likes people. Or something really be mastered. Make someone else read your writing and was amazed by it. Why? Because other people can with a ‘voluntary’ to a link to your website / blog. Link is the main capital that will make your blog is perceived as ‘more important’ than other blogs. More and many other blogs link to your blog, especially if linked to by blogs with high Page Rank, it will be higher the Page Rank you get.
The second is the Alexa Rank. Condition that the value the better your Alexa Rank is a high traffic towards your blog, and you get a high page views from visitors. How can bring high traffic to our blog? Now one of which must be mastered is the science of SEO. How do we make paper, indexed by search engines and occupy the top positions for keywords you use. Make search engines automatically bring traffic to our blog. Also, do not forget to display ‘selling you’. As I did in the sidebar of this blog. There are 15 recent post that I offer. Why not 5 right? I am preparing to visitors and readers of this blog on various topics that ‘they may need’. And several times successfully. Evidently, not a few visitors commented on more than one posting. That is, page views my blog quite high. I suspect, though this blog has not been visited by thousands of people per day , but because of its page view numbers pretty high, then Alexa Rank value becomes increasingly good.
And the last is SEO. How do we optimize for keywords that we use so it can compete with the writings of others who use the same keywords? Based on what I learned from the Masters, one of the most influential in determining search rankings at the Search Engine Page Rank is the value we have. Well ..!
As an illustration, when we want to write about specific keywords and performed an analysis of competitors, which must be considered is the Page Rank blogs that get results what is the number one in search engines. If the score is 4 to the top and we are smaller than that, the slim chance we can beat these blogs. Why? Search engines will rank search results based on how important that page in his eye. PR 4 is considered five times more important than the Page Rank of 3. Page Rank of 5 is considered 25 times more important than PR 3!
Are not those three things to be related to each other? Science SEO to get the best positions on search engines need a Page Rank as a capital. With good SEO, the high traffic we get, we value the better the Alexa Rank.