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Finding the Fourth Proportional to 3,551.64, 5,324.20 and 1,241.88

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Solution

The fourth proportional to 3,551.64, 5,324.20 and 1,241.88 is: 1,861.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.64 : 5,324.20 = 1,241.88 : x
  2. Step 2: Convert to fraction form
    3,551.64/5,324.20 = 1,241.88/x
  3. Step 3: Cross multiply
    3,551.64x = 5,324.20 × 1,241.88
  4. Step 4: Simplify right side
    3,551.64x = 6,612,017.50
  5. Step 5: Solve for x
    x = 6,612,017.50/3,551.64
  6. Step 6: Final answer
    x = 1,861.68

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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.