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Finding the Third Proportional to 54,499 and 84,422

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Solution

The third proportional to 54,499 and 84,422 is: 130,774.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,499 : 84,422 = 84,422 : x
  2. Step 2: Convert to fraction form
    54,499/84,422 = 84,422/x
  3. Step 3: Cross multiply
    54,499x = 84,422 × 84,422
  4. Step 4: Simplify right side
    54,499x = 7,127,074,084
  5. Step 5: Solve for x
    x = 7,127,074,084/54,499
  6. Step 6: Final answer
    x = 130,774.40

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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.