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Finding the Fourth Proportional to 24,372.40, 36,601.80 and 18,839.20

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Solution

The fourth proportional to 24,372.40, 36,601.80 and 18,839.20 is: 28,292.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,372.40 : 36,601.80 = 18,839.20 : x
  2. Step 2: Convert to fraction form
    24,372.40/36,601.80 = 18,839.20/x
  3. Step 3: Cross multiply
    24,372.40x = 36,601.80 × 18,839.20
  4. Step 4: Simplify right side
    24,372.40x = 689,548,630.56
  5. Step 5: Solve for x
    x = 689,548,630.56/24,372.40
  6. Step 6: Final answer
    x = 28,292.19

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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.