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Finding the Fourth Proportional to 3,859.94, 5,787.47 and 2,542.27

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Solution

The fourth proportional to 3,859.94, 5,787.47 and 2,542.27 is: 3,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.94 : 5,787.47 = 2,542.27 : x
  2. Step 2: Convert to fraction form
    3,859.94/5,787.47 = 2,542.27/x
  3. Step 3: Cross multiply
    3,859.94x = 5,787.47 × 2,542.27
  4. Step 4: Simplify right side
    3,859.94x = 14,713,311.36
  5. Step 5: Solve for x
    x = 14,713,311.36/3,859.94
  6. Step 6: Final answer
    x = 3,811.80

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Why These Related Problems?

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