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Finding the Fourth Proportional to 22,527, 31,087.26 and 12,591

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Solution

The fourth proportional to 22,527, 31,087.26 and 12,591 is: 17,375.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,527 : 31,087.26 = 12,591 : x
  2. Step 2: Convert to fraction form
    22,527/31,087.26 = 12,591/x
  3. Step 3: Cross multiply
    22,527x = 31,087.26 × 12,591
  4. Step 4: Simplify right side
    22,527x = 391,419,690.66
  5. Step 5: Solve for x
    x = 391,419,690.66/22,527
  6. Step 6: Final answer
    x = 17,375.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.