72 is 15 percent of what number? (15% of what number is 72?)

72 is 15 percent of what number?

"72 is 15 percent of what number?" is a word problem where the answer is a number. Specifically, if you calculate 15 percent of number (x), you will get 72. Thus, you can illustrate the problem "72 is 15 percent of what number (x)" like this:

15% of x = 72

To calculate 15 percent of a number, we multiply the number by 15 and then divide by 100. Therefore, we can make the following function:

		15 ∗ x
		100

= 72

To solve for x, we first multiply both sides by 100 and then divide both sides by 15 to get the x = 480. Therefore, the answer to 72 is 15 percent of what number? is:

480

If we substitue "what number" in the question "72 is 15 percent of what number?" with 480, we get this sentence: 72 is 15 percent of 480. Since this statement is true, we know that our answer is correct.

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