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Finding the Fourth Proportional to 26,589.98, 39,891.17 and 8,819.34

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Solution

The fourth proportional to 26,589.98, 39,891.17 and 8,819.34 is: 13,231.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,589.98 : 39,891.17 = 8,819.34 : x
  2. Step 2: Convert to fraction form
    26,589.98/39,891.17 = 8,819.34/x
  3. Step 3: Cross multiply
    26,589.98x = 39,891.17 × 8,819.34
  4. Step 4: Simplify right side
    26,589.98x = 351,813,791.23
  5. Step 5: Solve for x
    x = 351,813,791.23/26,589.98
  6. Step 6: Final answer
    x = 13,231.07

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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.