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Finding the Fourth Proportional to 22,687.68, 34,031.56 and 8,836.68

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Solution

The fourth proportional to 22,687.68, 34,031.56 and 8,836.68 is: 13,255.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,687.68 : 34,031.56 = 8,836.68 : x
  2. Step 2: Convert to fraction form
    22,687.68/34,031.56 = 8,836.68/x
  3. Step 3: Cross multiply
    22,687.68x = 34,031.56 × 8,836.68
  4. Step 4: Simplify right side
    22,687.68x = 300,726,005.62
  5. Step 5: Solve for x
    x = 300,726,005.62/22,687.68
  6. Step 6: Final answer
    x = 13,255.04

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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.