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Finding the Fourth Proportional to 12,627.73, 18,914.46 and 10,245.12

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Solution

The fourth proportional to 12,627.73, 18,914.46 and 10,245.12 is: 15,345.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627.73 : 18,914.46 = 10,245.12 : x
  2. Step 2: Convert to fraction form
    12,627.73/18,914.46 = 10,245.12/x
  3. Step 3: Cross multiply
    12,627.73x = 18,914.46 × 10,245.12
  4. Step 4: Simplify right side
    12,627.73x = 193,780,912.44
  5. Step 5: Solve for x
    x = 193,780,912.44/12,627.73
  6. Step 6: Final answer
    x = 15,345.66

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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.