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Finding the Fourth Proportional to 68,474.10, 94,490.82 and 38,253.42

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Solution

The fourth proportional to 68,474.10, 94,490.82 and 38,253.42 is: 52,787.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,474.10 : 94,490.82 = 38,253.42 : x
  2. Step 2: Convert to fraction form
    68,474.10/94,490.82 = 38,253.42/x
  3. Step 3: Cross multiply
    68,474.10x = 94,490.82 × 38,253.42
  4. Step 4: Simplify right side
    68,474.10x = 3,614,597,023.60
  5. Step 5: Solve for x
    x = 3,614,597,023.60/68,474.10
  6. Step 6: Final answer
    x = 52,787.80

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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.