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Finding the Fourth Proportional to 33,793.20, 50,689.80 and 9,169.20

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Solution

The fourth proportional to 33,793.20, 50,689.80 and 9,169.20 is: 13,753.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,793.20 : 50,689.80 = 9,169.20 : x
  2. Step 2: Convert to fraction form
    33,793.20/50,689.80 = 9,169.20/x
  3. Step 3: Cross multiply
    33,793.20x = 50,689.80 × 9,169.20
  4. Step 4: Simplify right side
    33,793.20x = 464,784,914.16
  5. Step 5: Solve for x
    x = 464,784,914.16/33,793.20
  6. Step 6: Final answer
    x = 13,753.80

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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.