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Finding the Fourth Proportional to 8,791.22, 13,174.53 and 5,092.46

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Solution

The fourth proportional to 8,791.22, 13,174.53 and 5,092.46 is: 7,631.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.22 : 13,174.53 = 5,092.46 : x
  2. Step 2: Convert to fraction form
    8,791.22/13,174.53 = 5,092.46/x
  3. Step 3: Cross multiply
    8,791.22x = 13,174.53 × 5,092.46
  4. Step 4: Simplify right side
    8,791.22x = 67,090,767.04
  5. Step 5: Solve for x
    x = 67,090,767.04/8,791.22
  6. Step 6: Final answer
    x = 7,631.57

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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.