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Finding the Fourth Proportional to 3,658.97, 5,475.70 and 2,993.15

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Solution

The fourth proportional to 3,658.97, 5,475.70 and 2,993.15 is: 4,479.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.97 : 5,475.70 = 2,993.15 : x
  2. Step 2: Convert to fraction form
    3,658.97/5,475.70 = 2,993.15/x
  3. Step 3: Cross multiply
    3,658.97x = 5,475.70 × 2,993.15
  4. Step 4: Simplify right side
    3,658.97x = 16,389,576.49
  5. Step 5: Solve for x
    x = 16,389,576.49/3,658.97
  6. Step 6: Final answer
    x = 4,479.29

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1.5x scale

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.