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Finding the Fourth Proportional to 8,577.43, 12,855.54 and 5,063.88

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Solution

The fourth proportional to 8,577.43, 12,855.54 and 5,063.88 is: 7,589.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,577.43 : 12,855.54 = 5,063.88 : x
  2. Step 2: Convert to fraction form
    8,577.43/12,855.54 = 5,063.88/x
  3. Step 3: Cross multiply
    8,577.43x = 12,855.54 × 5,063.88
  4. Step 4: Simplify right side
    8,577.43x = 65,098,911.90
  5. Step 5: Solve for x
    x = 65,098,911.90/8,577.43
  6. Step 6: Final answer
    x = 7,589.56

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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.