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Finding the Third Proportional to 55,584 and 80,432

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Solution

The third proportional to 55,584 and 80,432 is: 116,387.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,584 : 80,432 = 80,432 : x
  2. Step 2: Convert to fraction form
    55,584/80,432 = 80,432/x
  3. Step 3: Cross multiply
    55,584x = 80,432 × 80,432
  4. Step 4: Simplify right side
    55,584x = 6,469,306,624
  5. Step 5: Solve for x
    x = 6,469,306,624/55,584
  6. Step 6: Final answer
    x = 116,387.93

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.