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Finding the Fourth Proportional to 8,187.60, 12,283.52 and 2,344.64

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Solution

The fourth proportional to 8,187.60, 12,283.52 and 2,344.64 is: 3,517.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.60 : 12,283.52 = 2,344.64 : x
  2. Step 2: Convert to fraction form
    8,187.60/12,283.52 = 2,344.64/x
  3. Step 3: Cross multiply
    8,187.60x = 12,283.52 × 2,344.64
  4. Step 4: Simplify right side
    8,187.60x = 28,800,432.33
  5. Step 5: Solve for x
    x = 28,800,432.33/8,187.60
  6. Step 6: Final answer
    x = 3,517.57

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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.