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Finding the Fourth Proportional to 3,321.54, 4,982.45 and 1,241.33

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Solution

The fourth proportional to 3,321.54, 4,982.45 and 1,241.33 is: 1,862.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.54 : 4,982.45 = 1,241.33 : x
  2. Step 2: Convert to fraction form
    3,321.54/4,982.45 = 1,241.33/x
  3. Step 3: Cross multiply
    3,321.54x = 4,982.45 × 1,241.33
  4. Step 4: Simplify right side
    3,321.54x = 6,184,861.57
  5. Step 5: Solve for x
    x = 6,184,861.57/3,321.54
  6. Step 6: Final answer
    x = 1,862.05

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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.