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Finding the Fourth Proportional to 3,885.91, 5,361.24 and 2,372.92

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Solution

The fourth proportional to 3,885.91, 5,361.24 and 2,372.92 is: 3,273.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.91 : 5,361.24 = 2,372.92 : x
  2. Step 2: Convert to fraction form
    3,885.91/5,361.24 = 2,372.92/x
  3. Step 3: Cross multiply
    3,885.91x = 5,361.24 × 2,372.92
  4. Step 4: Simplify right side
    3,885.91x = 12,721,764.95
  5. Step 5: Solve for x
    x = 12,721,764.95/3,885.91
  6. Step 6: Final answer
    x = 3,273.82

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1.5x scale

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.