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Finding the Fourth Proportional to 5,863.90, 8,092.12 and 3,211.35

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Solution

The fourth proportional to 5,863.90, 8,092.12 and 3,211.35 is: 4,431.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,863.90 : 8,092.12 = 3,211.35 : x
  2. Step 2: Convert to fraction form
    5,863.90/8,092.12 = 3,211.35/x
  3. Step 3: Cross multiply
    5,863.90x = 8,092.12 × 3,211.35
  4. Step 4: Simplify right side
    5,863.90x = 25,986,629.56
  5. Step 5: Solve for x
    x = 25,986,629.56/5,863.90
  6. Step 6: Final answer
    x = 4,431.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.