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Finding the Fourth Proportional to 4,226.76, 6,321.51 and 3,839.22

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Solution

The fourth proportional to 4,226.76, 6,321.51 and 3,839.22 is: 5,741.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,226.76 : 6,321.51 = 3,839.22 : x
  2. Step 2: Convert to fraction form
    4,226.76/6,321.51 = 3,839.22/x
  3. Step 3: Cross multiply
    4,226.76x = 6,321.51 × 3,839.22
  4. Step 4: Simplify right side
    4,226.76x = 24,269,667.62
  5. Step 5: Solve for x
    x = 24,269,667.62/4,226.76
  6. Step 6: Final answer
    x = 5,741.91

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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.