Set up equation: Step 1: Set up the equation to find the base number where 19 is 100% of it.Let x be the number we are trying to find. Since 19 is 100% of x, we can write the equation:100% of x = 19This can be expressed as:1.00×x=19
Solve for x: Step 2: Solve for x.To find x, divide both sides of the equation by 1.00:x=1.0019x=19
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