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Finding the Fourth Proportional to 4,406.32, 6,081 and 2,638

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Solution

The fourth proportional to 4,406.32, 6,081 and 2,638 is: 3,640.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,406.32 : 6,081 = 2,638 : x
  2. Step 2: Convert to fraction form
    4,406.32/6,081 = 2,638/x
  3. Step 3: Cross multiply
    4,406.32x = 6,081 × 2,638
  4. Step 4: Simplify right side
    4,406.32x = 16,041,678
  5. Step 5: Solve for x
    x = 16,041,678/4,406.32
  6. Step 6: Final answer
    x = 3,640.61

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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.