Question 1205372
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The price P of 18,700 with a profit of 10% is 1.10 times the original cost C:<br>
{{{1.10(C) = 18700}}}<br>
You can find the original cost using that equation and then use the original cost to find the price with a profit of 18%.<br>
But there is no need to take the extra step to find the original price.  The price with a profit of 18% is<br>
{{{1.18(C)=(1.18/1.10)(1.10(C))= (1.18/1.10)(18700)=20060}}}<br>