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Finding the Fourth Proportional to 15,067.62, 20,793.44 and 8,353.40

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Solution

The fourth proportional to 15,067.62, 20,793.44 and 8,353.40 is: 11,527.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.62 : 20,793.44 = 8,353.40 : x
  2. Step 2: Convert to fraction form
    15,067.62/20,793.44 = 8,353.40/x
  3. Step 3: Cross multiply
    15,067.62x = 20,793.44 × 8,353.40
  4. Step 4: Simplify right side
    15,067.62x = 173,695,838.61
  5. Step 5: Solve for x
    x = 173,695,838.61/15,067.62
  6. Step 6: Final answer
    x = 11,527.76

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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.