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Finding the Fourth Proportional to 12,374.88, 18,562.32 and 3,609.60

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Solution

The fourth proportional to 12,374.88, 18,562.32 and 3,609.60 is: 5,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.88 : 18,562.32 = 3,609.60 : x
  2. Step 2: Convert to fraction form
    12,374.88/18,562.32 = 3,609.60/x
  3. Step 3: Cross multiply
    12,374.88x = 18,562.32 × 3,609.60
  4. Step 4: Simplify right side
    12,374.88x = 67,002,550.27
  5. Step 5: Solve for x
    x = 67,002,550.27/12,374.88
  6. Step 6: Final answer
    x = 5,414.40

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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.