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Finding the Fourth Proportional to 8,359.62, 12,531.20 and 4,663.59

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Solution

The fourth proportional to 8,359.62, 12,531.20 and 4,663.59 is: 6,990.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,359.62 : 12,531.20 = 4,663.59 : x
  2. Step 2: Convert to fraction form
    8,359.62/12,531.20 = 4,663.59/x
  3. Step 3: Cross multiply
    8,359.62x = 12,531.20 × 4,663.59
  4. Step 4: Simplify right side
    8,359.62x = 58,440,355.69
  5. Step 5: Solve for x
    x = 58,440,355.69/8,359.62
  6. Step 6: Final answer
    x = 6,990.79

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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.