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Finding the Fourth Proportional to 41,008.87, 61,491.43 and 21,238.39

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Solution

The fourth proportional to 41,008.87, 61,491.43 and 21,238.39 is: 31,846.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,008.87 : 61,491.43 = 21,238.39 : x
  2. Step 2: Convert to fraction form
    41,008.87/61,491.43 = 21,238.39/x
  3. Step 3: Cross multiply
    41,008.87x = 61,491.43 × 21,238.39
  4. Step 4: Simplify right side
    41,008.87x = 1,305,978,972.00
  5. Step 5: Solve for x
    x = 1,305,978,972.00/41,008.87
  6. Step 6: Final answer
    x = 31,846.26

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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.