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Finding the Fourth Proportional to 3,321.88, 4,982.26 and 1,241.38

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Solution

The fourth proportional to 3,321.88, 4,982.26 and 1,241.38 is: 1,861.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.88 : 4,982.26 = 1,241.38 : x
  2. Step 2: Convert to fraction form
    3,321.88/4,982.26 = 1,241.38/x
  3. Step 3: Cross multiply
    3,321.88x = 4,982.26 × 1,241.38
  4. Step 4: Simplify right side
    3,321.88x = 6,184,877.92
  5. Step 5: Solve for x
    x = 6,184,877.92/3,321.88
  6. Step 6: Final answer
    x = 1,861.86

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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.