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Finding the Fourth Proportional to 17,791.87, 26,687.82 and 4,644.22

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Solution

The fourth proportional to 17,791.87, 26,687.82 and 4,644.22 is: 6,966.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,791.87 : 26,687.82 = 4,644.22 : x
  2. Step 2: Convert to fraction form
    17,791.87/26,687.82 = 4,644.22/x
  3. Step 3: Cross multiply
    17,791.87x = 26,687.82 × 4,644.22
  4. Step 4: Simplify right side
    17,791.87x = 123,944,107.40
  5. Step 5: Solve for x
    x = 123,944,107.40/17,791.87
  6. Step 6: Final answer
    x = 6,966.33

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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.