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Finding the Fourth Proportional to 11,791.08, 17,687.64 and 5,943.96

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Solution

The fourth proportional to 11,791.08, 17,687.64 and 5,943.96 is: 8,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.08 : 17,687.64 = 5,943.96 : x
  2. Step 2: Convert to fraction form
    11,791.08/17,687.64 = 5,943.96/x
  3. Step 3: Cross multiply
    11,791.08x = 17,687.64 × 5,943.96
  4. Step 4: Simplify right side
    11,791.08x = 105,134,624.65
  5. Step 5: Solve for x
    x = 105,134,624.65/11,791.08
  6. Step 6: Final answer
    x = 8,916.45

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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.