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Finding the Fourth Proportional to 38,784.54, 58,121.04 and 16,591.88

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Solution

The fourth proportional to 38,784.54, 58,121.04 and 16,591.88 is: 24,863.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,784.54 : 58,121.04 = 16,591.88 : x
  2. Step 2: Convert to fraction form
    38,784.54/58,121.04 = 16,591.88/x
  3. Step 3: Cross multiply
    38,784.54x = 58,121.04 × 16,591.88
  4. Step 4: Simplify right side
    38,784.54x = 964,337,321.16
  5. Step 5: Solve for x
    x = 964,337,321.16/38,784.54
  6. Step 6: Final answer
    x = 24,863.96

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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.