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Finding the Fourth Proportional to 15,097.44, 20,827.20 and 9,793.92

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Solution

The fourth proportional to 15,097.44, 20,827.20 and 9,793.92 is: 13,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,097.44 : 20,827.20 = 9,793.92 : x
  2. Step 2: Convert to fraction form
    15,097.44/20,827.20 = 9,793.92/x
  3. Step 3: Cross multiply
    15,097.44x = 20,827.20 × 9,793.92
  4. Step 4: Simplify right side
    15,097.44x = 203,979,930.62
  5. Step 5: Solve for x
    x = 203,979,930.62/15,097.44
  6. Step 6: Final answer
    x = 13,510.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.