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Finding the Fourth Proportional to 8,482.63, 12,723.96 and 2,639.24

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Solution

The fourth proportional to 8,482.63, 12,723.96 and 2,639.24 is: 3,958.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482.63 : 12,723.96 = 2,639.24 : x
  2. Step 2: Convert to fraction form
    8,482.63/12,723.96 = 2,639.24/x
  3. Step 3: Cross multiply
    8,482.63x = 12,723.96 × 2,639.24
  4. Step 4: Simplify right side
    8,482.63x = 33,581,584.19
  5. Step 5: Solve for x
    x = 33,581,584.19/8,482.63
  6. Step 6: Final answer
    x = 3,958.86

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Similar ratio
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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.