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Finding the Fourth Proportional to 5,982.60, 8,247.45 and 3,992.43

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Solution

The fourth proportional to 5,982.60, 8,247.45 and 3,992.43 is: 5,503.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,982.60 : 8,247.45 = 3,992.43 : x
  2. Step 2: Convert to fraction form
    5,982.60/8,247.45 = 3,992.43/x
  3. Step 3: Cross multiply
    5,982.60x = 8,247.45 × 3,992.43
  4. Step 4: Simplify right side
    5,982.60x = 32,927,366.80
  5. Step 5: Solve for x
    x = 32,927,366.80/5,982.60
  6. Step 6: Final answer
    x = 5,503.86

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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.