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Finding the Fourth Proportional to 5,662.60, 8,493.90 and 3,881.90

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Solution

The fourth proportional to 5,662.60, 8,493.90 and 3,881.90 is: 5,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,662.60 : 8,493.90 = 3,881.90 : x
  2. Step 2: Convert to fraction form
    5,662.60/8,493.90 = 3,881.90/x
  3. Step 3: Cross multiply
    5,662.60x = 8,493.90 × 3,881.90
  4. Step 4: Simplify right side
    5,662.60x = 32,972,470.41
  5. Step 5: Solve for x
    x = 32,972,470.41/5,662.60
  6. Step 6: Final answer
    x = 5,822.85

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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.