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Finding the Fourth Proportional to 8,170.62, 12,250.66 and 3,493.68

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Solution

The fourth proportional to 8,170.62, 12,250.66 and 3,493.68 is: 5,238.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.62 : 12,250.66 = 3,493.68 : x
  2. Step 2: Convert to fraction form
    8,170.62/12,250.66 = 3,493.68/x
  3. Step 3: Cross multiply
    8,170.62x = 12,250.66 × 3,493.68
  4. Step 4: Simplify right side
    8,170.62x = 42,799,885.83
  5. Step 5: Solve for x
    x = 42,799,885.83/8,170.62
  6. Step 6: Final answer
    x = 5,238.27

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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.