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Finding the Fourth Proportional to 36,658.90, 50,589.87 and 19,891.90

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Solution

The fourth proportional to 36,658.90, 50,589.87 and 19,891.90 is: 27,451.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,658.90 : 50,589.87 = 19,891.90 : x
  2. Step 2: Convert to fraction form
    36,658.90/50,589.87 = 19,891.90/x
  3. Step 3: Cross multiply
    36,658.90x = 50,589.87 × 19,891.90
  4. Step 4: Simplify right side
    36,658.90x = 1,006,328,635.05
  5. Step 5: Solve for x
    x = 1,006,328,635.05/36,658.90
  6. Step 6: Final answer
    x = 27,451.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.