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Finding the Fourth Proportional to 33,414.08, 50,101.68 and 12,639.20

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Solution

The fourth proportional to 33,414.08, 50,101.68 and 12,639.20 is: 18,951.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,414.08 : 50,101.68 = 12,639.20 : x
  2. Step 2: Convert to fraction form
    33,414.08/50,101.68 = 12,639.20/x
  3. Step 3: Cross multiply
    33,414.08x = 50,101.68 × 12,639.20
  4. Step 4: Simplify right side
    33,414.08x = 633,245,153.86
  5. Step 5: Solve for x
    x = 633,245,153.86/33,414.08
  6. Step 6: Final answer
    x = 18,951.45

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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.