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Finding the Fourth Proportional to 22,757.76, 34,129.96 and 7,963.92

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Solution

The fourth proportional to 22,757.76, 34,129.96 and 7,963.92 is: 11,943.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,757.76 : 34,129.96 = 7,963.92 : x
  2. Step 2: Convert to fraction form
    22,757.76/34,129.96 = 7,963.92/x
  3. Step 3: Cross multiply
    22,757.76x = 34,129.96 × 7,963.92
  4. Step 4: Simplify right side
    22,757.76x = 271,808,251.13
  5. Step 5: Solve for x
    x = 271,808,251.13/22,757.76
  6. Step 6: Final answer
    x = 11,943.54

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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.