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Finding the Fourth Proportional to 8,168.74, 12,257.16 and 3,238.27

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Solution

The fourth proportional to 8,168.74, 12,257.16 and 3,238.27 is: 4,859.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.74 : 12,257.16 = 3,238.27 : x
  2. Step 2: Convert to fraction form
    8,168.74/12,257.16 = 3,238.27/x
  3. Step 3: Cross multiply
    8,168.74x = 12,257.16 × 3,238.27
  4. Step 4: Simplify right side
    8,168.74x = 39,691,962.87
  5. Step 5: Solve for x
    x = 39,691,962.87/8,168.74
  6. Step 6: Final answer
    x = 4,859.01

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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.