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Finding the Fourth Proportional to 15,067.92, 20,793.51 and 8,353.43

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Solution

The fourth proportional to 15,067.92, 20,793.51 and 8,353.43 is: 11,527.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.92 : 20,793.51 = 8,353.43 : x
  2. Step 2: Convert to fraction form
    15,067.92/20,793.51 = 8,353.43/x
  3. Step 3: Cross multiply
    15,067.92x = 20,793.51 × 8,353.43
  4. Step 4: Simplify right side
    15,067.92x = 173,697,104.25
  5. Step 5: Solve for x
    x = 173,697,104.25/15,067.92
  6. Step 6: Final answer
    x = 11,527.61

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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.