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Finding the Third Proportional to 13,432 and 31,660

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Solution

The third proportional to 13,432 and 31,660 is: 74,624.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432 : 31,660 = 31,660 : x
  2. Step 2: Convert to fraction form
    13,432/31,660 = 31,660/x
  3. Step 3: Cross multiply
    13,432x = 31,660 × 31,660
  4. Step 4: Simplify right side
    13,432x = 1,002,355,600
  5. Step 5: Solve for x
    x = 1,002,355,600/13,432
  6. Step 6: Final answer
    x = 74,624.45

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.