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Finding the Fourth Proportional to 15,067.61, 20,793.13 and 8,353.25

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Solution

The fourth proportional to 15,067.61, 20,793.13 and 8,353.25 is: 11,527.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.61 : 20,793.13 = 8,353.25 : x
  2. Step 2: Convert to fraction form
    15,067.61/20,793.13 = 8,353.25/x
  3. Step 3: Cross multiply
    15,067.61x = 20,793.13 × 8,353.25
  4. Step 4: Simplify right side
    15,067.61x = 173,690,213.17
  5. Step 5: Solve for x
    x = 173,690,213.17/15,067.61
  6. Step 6: Final answer
    x = 11,527.39

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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.