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Finding the Fourth Proportional to 12,589.59, 18,847.92 and 9,482.68

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Solution

The fourth proportional to 12,589.59, 18,847.92 and 9,482.68 is: 14,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.59 : 18,847.92 = 9,482.68 : x
  2. Step 2: Convert to fraction form
    12,589.59/18,847.92 = 9,482.68/x
  3. Step 3: Cross multiply
    12,589.59x = 18,847.92 × 9,482.68
  4. Step 4: Simplify right side
    12,589.59x = 178,728,794.03
  5. Step 5: Solve for x
    x = 178,728,794.03/12,589.59
  6. Step 6: Final answer
    x = 14,196.55

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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.