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Finding the Third Proportional to 55,692 and 86,366

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Solution

The third proportional to 55,692 and 86,366 is: 133,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,692 : 86,366 = 86,366 : x
  2. Step 2: Convert to fraction form
    55,692/86,366 = 86,366/x
  3. Step 3: Cross multiply
    55,692x = 86,366 × 86,366
  4. Step 4: Simplify right side
    55,692x = 7,459,085,956
  5. Step 5: Solve for x
    x = 7,459,085,956/55,692
  6. Step 6: Final answer
    x = 133,934.60

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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.