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Finding the Fourth Proportional to 24,217.20, 36,331.20 and 18,968.40

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Solution

The fourth proportional to 24,217.20, 36,331.20 and 18,968.40 is: 28,456.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,217.20 : 36,331.20 = 18,968.40 : x
  2. Step 2: Convert to fraction form
    24,217.20/36,331.20 = 18,968.40/x
  3. Step 3: Cross multiply
    24,217.20x = 36,331.20 × 18,968.40
  4. Step 4: Simplify right side
    24,217.20x = 689,144,734.08
  5. Step 5: Solve for x
    x = 689,144,734.08/24,217.20
  6. Step 6: Final answer
    x = 28,456.83

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.