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Finding the Fourth Proportional to 8,472.59, 12,709.28 and 4,093.73

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Solution

The fourth proportional to 8,472.59, 12,709.28 and 4,093.73 is: 6,140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.59 : 12,709.28 = 4,093.73 : x
  2. Step 2: Convert to fraction form
    8,472.59/12,709.28 = 4,093.73/x
  3. Step 3: Cross multiply
    8,472.59x = 12,709.28 × 4,093.73
  4. Step 4: Simplify right side
    8,472.59x = 52,028,297.27
  5. Step 5: Solve for x
    x = 52,028,297.27/8,472.59
  6. Step 6: Final answer
    x = 6,140.78

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1.5x scale

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.