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Finding the Fourth Proportional to 22,489.62, 33,731.29 and 12,361.17

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Solution

The fourth proportional to 22,489.62, 33,731.29 and 12,361.17 is: 18,540.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,489.62 : 33,731.29 = 12,361.17 : x
  2. Step 2: Convert to fraction form
    22,489.62/33,731.29 = 12,361.17/x
  3. Step 3: Cross multiply
    22,489.62x = 33,731.29 × 12,361.17
  4. Step 4: Simplify right side
    22,489.62x = 416,958,282.42
  5. Step 5: Solve for x
    x = 416,958,282.42/22,489.62
  6. Step 6: Final answer
    x = 18,540.04

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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.