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Finding the Fourth Proportional to 83,878.54, 125,791.11 and 27,708.14

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Solution

The fourth proportional to 83,878.54, 125,791.11 and 27,708.14 is: 41,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,878.54 : 125,791.11 = 27,708.14 : x
  2. Step 2: Convert to fraction form
    83,878.54/125,791.11 = 27,708.14/x
  3. Step 3: Cross multiply
    83,878.54x = 125,791.11 × 27,708.14
  4. Step 4: Simplify right side
    83,878.54x = 3,485,438,001.11
  5. Step 5: Solve for x
    x = 3,485,438,001.11/83,878.54
  6. Step 6: Final answer
    x = 41,553.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.