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Finding the Fourth Proportional to 4,086.60, 6,132.60 and 2,331.60

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Solution

The fourth proportional to 4,086.60, 6,132.60 and 2,331.60 is: 3,498.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.60 : 6,132.60 = 2,331.60 : x
  2. Step 2: Convert to fraction form
    4,086.60/6,132.60 = 2,331.60/x
  3. Step 3: Cross multiply
    4,086.60x = 6,132.60 × 2,331.60
  4. Step 4: Simplify right side
    4,086.60x = 14,298,770.16
  5. Step 5: Solve for x
    x = 14,298,770.16/4,086.60
  6. Step 6: Final answer
    x = 3,498.94

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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.