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Finding the Fourth Proportional to 17,791.59, 26,687.39 and 4,643.85

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Solution

The fourth proportional to 17,791.59, 26,687.39 and 4,643.85 is: 6,965.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,791.59 : 26,687.39 = 4,643.85 : x
  2. Step 2: Convert to fraction form
    17,791.59/26,687.39 = 4,643.85/x
  3. Step 3: Cross multiply
    17,791.59x = 26,687.39 × 4,643.85
  4. Step 4: Simplify right side
    17,791.59x = 123,932,212.83
  5. Step 5: Solve for x
    x = 123,932,212.83/17,791.59
  6. Step 6: Final answer
    x = 6,965.78

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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.