To find the number you need to multiply by 3 to get 45, you can set up the equation 3x = 45, where x is the unknown number. To solve for x, you divide both sides by 3, which gives you x = 45 / 3. Therefore, you need to multiply 3 by 15 to get 45.
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Divide 45 by 3 and multiply the answer by 4...
x=3 cross multiply and you get 15x=45 then divide 45 by 15 and you get 3
189
Well, darling, the product of 15 and 3 is 45. It's as simple as that. Multiply those numbers together and you've got your answer. Math doesn't have to be complicated, honey.
4*45=180