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Finding the Fourth Proportional to 5,872.86, 8,790.57 and 3,267.90

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Solution

The fourth proportional to 5,872.86, 8,790.57 and 3,267.90 is: 4,891.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.86 : 8,790.57 = 3,267.90 : x
  2. Step 2: Convert to fraction form
    5,872.86/8,790.57 = 3,267.90/x
  3. Step 3: Cross multiply
    5,872.86x = 8,790.57 × 3,267.90
  4. Step 4: Simplify right side
    5,872.86x = 28,726,703.70
  5. Step 5: Solve for x
    x = 28,726,703.70/5,872.86
  6. Step 6: Final answer
    x = 4,891.43

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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.