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A book sold 39,400 copies in its first month of release. suppose this represents 8.9% of the number of copies sold to date. how many copies have been sold to date?

A book sold 39,400 copies in its first month of release. suppose this represents 8.9% of the number of copies sold to date. how many copies have been sold to date?
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A book sold 39,400 copies in its first month of release. suppose this represents 8.9% of the number of copies sold to date. how many copies have been sold to date?

User Invin
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The book has sold 442,696 copies to date. This was calculated by making a proportion: 8.9 : 39,400 = 100 : X where X Is the number of copies sold. Then I calculated 39,400*100/8.9 to obtain the answer
User Leompeters
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