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Finding the Fourth Proportional to 3,658.88, 5,487.48 and 1,193

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Solution

The fourth proportional to 3,658.88, 5,487.48 and 1,193 is: 1,789.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.88 : 5,487.48 = 1,193 : x
  2. Step 2: Convert to fraction form
    3,658.88/5,487.48 = 1,193/x
  3. Step 3: Cross multiply
    3,658.88x = 5,487.48 × 1,193
  4. Step 4: Simplify right side
    3,658.88x = 6,546,563.64
  5. Step 5: Solve for x
    x = 6,546,563.64/3,658.88
  6. Step 6: Final answer
    x = 1,789.23

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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.