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Finding the Fourth Proportional to 3,861.62, 5,297.32 and 3,758.96

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Solution

The fourth proportional to 3,861.62, 5,297.32 and 3,758.96 is: 5,156.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.62 : 5,297.32 = 3,758.96 : x
  2. Step 2: Convert to fraction form
    3,861.62/5,297.32 = 3,758.96/x
  3. Step 3: Cross multiply
    3,861.62x = 5,297.32 × 3,758.96
  4. Step 4: Simplify right side
    3,861.62x = 19,912,378.10
  5. Step 5: Solve for x
    x = 19,912,378.10/3,861.62
  6. Step 6: Final answer
    x = 5,156.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.