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Finding the Fourth Proportional to 17,245.67, 25,871.07 and 8,481.20

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Solution

The fourth proportional to 17,245.67, 25,871.07 and 8,481.20 is: 12,723.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,245.67 : 25,871.07 = 8,481.20 : x
  2. Step 2: Convert to fraction form
    17,245.67/25,871.07 = 8,481.20/x
  3. Step 3: Cross multiply
    17,245.67x = 25,871.07 × 8,481.20
  4. Step 4: Simplify right side
    17,245.67x = 219,417,718.88
  5. Step 5: Solve for x
    x = 219,417,718.88/17,245.67
  6. Step 6: Final answer
    x = 12,723.06

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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.