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Finding the Fourth Proportional to 10,791.34, 16,182.75 and 5,243.04

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Solution

The fourth proportional to 10,791.34, 16,182.75 and 5,243.04 is: 7,862.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.34 : 16,182.75 = 5,243.04 : x
  2. Step 2: Convert to fraction form
    10,791.34/16,182.75 = 5,243.04/x
  3. Step 3: Cross multiply
    10,791.34x = 16,182.75 × 5,243.04
  4. Step 4: Simplify right side
    10,791.34x = 84,846,805.56
  5. Step 5: Solve for x
    x = 84,846,805.56/10,791.34
  6. Step 6: Final answer
    x = 7,862.49

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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.