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If you take 15 percent of a number and get 6420, then what is that number? In other words, you know that 15 percent of a number is 6420 and you want to know what that initial number is.

To solve this problem you multiply 6420 by 100 and then divide the total by 15 as follows: (6420 x 100) / 15

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

42800


Therefore, the answer to "6420 is 15 percent of what number?" is 42800, and you can also derive that 15 percent of 42800 equals 6420.

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