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Finding the Fourth Proportional to 8,159.54, 12,236.27 and 3,229.88

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Solution

The fourth proportional to 8,159.54, 12,236.27 and 3,229.88 is: 4,843.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.54 : 12,236.27 = 3,229.88 : x
  2. Step 2: Convert to fraction form
    8,159.54/12,236.27 = 3,229.88/x
  3. Step 3: Cross multiply
    8,159.54x = 12,236.27 × 3,229.88
  4. Step 4: Simplify right side
    8,159.54x = 39,521,606.42
  5. Step 5: Solve for x
    x = 39,521,606.42/8,159.54
  6. Step 6: Final answer
    x = 4,843.61

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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.