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If you take 40 percent of a number and get 57, then what is that number? In other words, you know that 40 percent of a number is 57 and you want to know what that initial number is.

To solve this problem you multiply 57 by 100 and then divide the total by 40 as follows: (57 x 100) / 40

When we put that into our calculator, we get the following answer:

142.5


Therefore, the answer to "57 is 40 percent of what number?" is 142.5, and you can also derive that 40 percent of 142.5 equals 57.

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