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Finding the Third Proportional to 60,432 and 129,608

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Solution

The third proportional to 60,432 and 129,608 is: 277,969.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,432 : 129,608 = 129,608 : x
  2. Step 2: Convert to fraction form
    60,432/129,608 = 129,608/x
  3. Step 3: Cross multiply
    60,432x = 129,608 × 129,608
  4. Step 4: Simplify right side
    60,432x = 16,798,233,664
  5. Step 5: Solve for x
    x = 16,798,233,664/60,432
  6. Step 6: Final answer
    x = 277,969.18

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.