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Finding the Fourth Proportional to 3,872.76, 5,343.12 and 2,193.96

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Solution

The fourth proportional to 3,872.76, 5,343.12 and 2,193.96 is: 3,026.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.76 : 5,343.12 = 2,193.96 : x
  2. Step 2: Convert to fraction form
    3,872.76/5,343.12 = 2,193.96/x
  3. Step 3: Cross multiply
    3,872.76x = 5,343.12 × 2,193.96
  4. Step 4: Simplify right side
    3,872.76x = 11,722,591.56
  5. Step 5: Solve for x
    x = 11,722,591.56/3,872.76
  6. Step 6: Final answer
    x = 3,026.93

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