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Finding the Third Proportional to 39,472 and 62,772

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Solution

The third proportional to 39,472 and 62,772 is: 99,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,472 : 62,772 = 62,772 : x
  2. Step 2: Convert to fraction form
    39,472/62,772 = 62,772/x
  3. Step 3: Cross multiply
    39,472x = 62,772 × 62,772
  4. Step 4: Simplify right side
    39,472x = 3,940,323,984
  5. Step 5: Solve for x
    x = 3,940,323,984/39,472
  6. Step 6: Final answer
    x = 99,825.80

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.