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Finding the Third Proportional to 28,272 and 60,432

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Solution

The third proportional to 28,272 and 60,432 is: 129,174.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272 : 60,432 = 60,432 : x
  2. Step 2: Convert to fraction form
    28,272/60,432 = 60,432/x
  3. Step 3: Cross multiply
    28,272x = 60,432 × 60,432
  4. Step 4: Simplify right side
    28,272x = 3,652,026,624
  5. Step 5: Solve for x
    x = 3,652,026,624/28,272
  6. Step 6: Final answer
    x = 129,174.68

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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.