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Finding the Third Proportional to 52,680 and 81,348

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Solution

The third proportional to 52,680 and 81,348 is: 125,616.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,680 : 81,348 = 81,348 : x
  2. Step 2: Convert to fraction form
    52,680/81,348 = 81,348/x
  3. Step 3: Cross multiply
    52,680x = 81,348 × 81,348
  4. Step 4: Simplify right side
    52,680x = 6,617,497,104
  5. Step 5: Solve for x
    x = 6,617,497,104/52,680
  6. Step 6: Final answer
    x = 125,616.88

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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.