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Finding the Fourth Proportional to 8,474.04, 12,715.77 and 3,793.86

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Solution

The fourth proportional to 8,474.04, 12,715.77 and 3,793.86 is: 5,692.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.04 : 12,715.77 = 3,793.86 : x
  2. Step 2: Convert to fraction form
    8,474.04/12,715.77 = 3,793.86/x
  3. Step 3: Cross multiply
    8,474.04x = 12,715.77 × 3,793.86
  4. Step 4: Simplify right side
    8,474.04x = 48,241,768.62
  5. Step 5: Solve for x
    x = 48,241,768.62/8,474.04
  6. Step 6: Final answer
    x = 5,692.89

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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.