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Finding the Fourth Proportional to 21,843.55, 32,737.87 and 9,348.90

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Solution

The fourth proportional to 21,843.55, 32,737.87 and 9,348.90 is: 14,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843.55 : 32,737.87 = 9,348.90 : x
  2. Step 2: Convert to fraction form
    21,843.55/32,737.87 = 9,348.90/x
  3. Step 3: Cross multiply
    21,843.55x = 32,737.87 × 9,348.90
  4. Step 4: Simplify right side
    21,843.55x = 306,063,072.84
  5. Step 5: Solve for x
    x = 306,063,072.84/21,843.55
  6. Step 6: Final answer
    x = 14,011.60

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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.