Finding the Third Proportional to 752.50 and 1,129
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Solution
The third proportional to 752.50 and 1,129 is: 1,693.88
Step by Step Solution
- Step 1: Write the proportion equation
752.50 : 1,129 = 1,129 : x - Step 2: Convert to fraction form
752.50/1,129 = 1,129/x - Step 3: Cross multiply
752.50x = 1,129 × 1,129 - Step 4: Simplify right side
752.50x = 1,274,641 - Step 5: Solve for x
x = 1,274,641/752.50 - Step 6: Final answer
x = 1,693.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.