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Finding the Third Proportional to 54,500 and 84,418

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Solution

The third proportional to 54,500 and 84,418 is: 130,759.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,500 : 84,418 = 84,418 : x
  2. Step 2: Convert to fraction form
    54,500/84,418 = 84,418/x
  3. Step 3: Cross multiply
    54,500x = 84,418 × 84,418
  4. Step 4: Simplify right side
    54,500x = 7,126,398,724
  5. Step 5: Solve for x
    x = 7,126,398,724/54,500
  6. Step 6: Final answer
    x = 130,759.61

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.