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Finding the Fourth Proportional to 8,425.52, 12,639.50 and 3,232.60

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Solution

The fourth proportional to 8,425.52, 12,639.50 and 3,232.60 is: 4,849.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.52 : 12,639.50 = 3,232.60 : x
  2. Step 2: Convert to fraction form
    8,425.52/12,639.50 = 3,232.60/x
  3. Step 3: Cross multiply
    8,425.52x = 12,639.50 × 3,232.60
  4. Step 4: Simplify right side
    8,425.52x = 40,858,447.70
  5. Step 5: Solve for x
    x = 40,858,447.70/8,425.52
  6. Step 6: Final answer
    x = 4,849.37

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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.