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Finding the Fourth Proportional to 11,761.50, 16,231.62 and 6,793.50

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Solution

The fourth proportional to 11,761.50, 16,231.62 and 6,793.50 is: 9,375.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,761.50 : 16,231.62 = 6,793.50 : x
  2. Step 2: Convert to fraction form
    11,761.50/16,231.62 = 6,793.50/x
  3. Step 3: Cross multiply
    11,761.50x = 16,231.62 × 6,793.50
  4. Step 4: Simplify right side
    11,761.50x = 110,269,510.47
  5. Step 5: Solve for x
    x = 110,269,510.47/11,761.50
  6. Step 6: Final answer
    x = 9,375.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.