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Finding the Third Proportional to 517.50 and 736.88

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Solution

The third proportional to 517.50 and 736.88 is: 1,049.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.50 : 736.88 = 736.88 : x
  2. Step 2: Convert to fraction form
    517.50/736.88 = 736.88/x
  3. Step 3: Cross multiply
    517.50x = 736.88 × 736.88
  4. Step 4: Simplify right side
    517.50x = 542,984.77
  5. Step 5: Solve for x
    x = 542,984.77/517.50
  6. Step 6: Final answer
    x = 1,049.25

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.