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Finding the Third Proportional to 502.50 and 748.88

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Solution

The third proportional to 502.50 and 748.88 is: 1,116.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.50 : 748.88 = 748.88 : x
  2. Step 2: Convert to fraction form
    502.50/748.88 = 748.88/x
  3. Step 3: Cross multiply
    502.50x = 748.88 × 748.88
  4. Step 4: Simplify right side
    502.50x = 560,813.77
  5. Step 5: Solve for x
    x = 560,813.77/502.50
  6. Step 6: Final answer
    x = 1,116.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.