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Finding the Fourth Proportional to 67,910.85, 101,883.90 and 25,791.66

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Solution

The fourth proportional to 67,910.85, 101,883.90 and 25,791.66 is: 38,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,910.85 : 101,883.90 = 25,791.66 : x
  2. Step 2: Convert to fraction form
    67,910.85/101,883.90 = 25,791.66/x
  3. Step 3: Cross multiply
    67,910.85x = 101,883.90 × 25,791.66
  4. Step 4: Simplify right side
    67,910.85x = 2,627,754,908.27
  5. Step 5: Solve for x
    x = 2,627,754,908.27/67,910.85
  6. Step 6: Final answer
    x = 38,694.18

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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.