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Finding the Fourth Proportional to 17,791.81, 26,687.68 and 16,709.24

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Solution

The fourth proportional to 17,791.81, 26,687.68 and 16,709.24 is: 25,063.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,791.81 : 26,687.68 = 16,709.24 : x
  2. Step 2: Convert to fraction form
    17,791.81/26,687.68 = 16,709.24/x
  3. Step 3: Cross multiply
    17,791.81x = 26,687.68 × 16,709.24
  4. Step 4: Simplify right side
    17,791.81x = 445,930,875.11
  5. Step 5: Solve for x
    x = 445,930,875.11/17,791.81
  6. Step 6: Final answer
    x = 25,063.83

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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.