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Finding the Fourth Proportional to 20,833.92, 31,253.31 and 6,793.38

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Solution

The fourth proportional to 20,833.92, 31,253.31 and 6,793.38 is: 10,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.92 : 31,253.31 = 6,793.38 : x
  2. Step 2: Convert to fraction form
    20,833.92/31,253.31 = 6,793.38/x
  3. Step 3: Cross multiply
    20,833.92x = 31,253.31 × 6,793.38
  4. Step 4: Simplify right side
    20,833.92x = 212,315,611.09
  5. Step 5: Solve for x
    x = 212,315,611.09/20,833.92
  6. Step 6: Final answer
    x = 10,190.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.