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Finding the Third Proportional to 62,330 and 87,460

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Solution

The third proportional to 62,330 and 87,460 is: 122,721.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,330 : 87,460 = 87,460 : x
  2. Step 2: Convert to fraction form
    62,330/87,460 = 87,460/x
  3. Step 3: Cross multiply
    62,330x = 87,460 × 87,460
  4. Step 4: Simplify right side
    62,330x = 7,649,251,600
  5. Step 5: Solve for x
    x = 7,649,251,600/62,330
  6. Step 6: Final answer
    x = 122,721.83

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.