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Finding the Third Proportional to 54,571 and 84,108

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Solution

The third proportional to 54,571 and 84,108 is: 129,632.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,571 : 84,108 = 84,108 : x
  2. Step 2: Convert to fraction form
    54,571/84,108 = 84,108/x
  3. Step 3: Cross multiply
    54,571x = 84,108 × 84,108
  4. Step 4: Simplify right side
    54,571x = 7,074,155,664
  5. Step 5: Solve for x
    x = 7,074,155,664/54,571
  6. Step 6: Final answer
    x = 129,632.14

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.