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Finding the Fourth Proportional to 26,575.87, 39,861.36 and 8,107.87

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Solution

The fourth proportional to 26,575.87, 39,861.36 and 8,107.87 is: 12,161.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,575.87 : 39,861.36 = 8,107.87 : x
  2. Step 2: Convert to fraction form
    26,575.87/39,861.36 = 8,107.87/x
  3. Step 3: Cross multiply
    26,575.87x = 39,861.36 × 8,107.87
  4. Step 4: Simplify right side
    26,575.87x = 323,190,724.90
  5. Step 5: Solve for x
    x = 323,190,724.90/26,575.87
  6. Step 6: Final answer
    x = 12,161.06

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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.