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Finding the Fourth Proportional to 25,723.44, 38,589.48 and 8,197.20

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Solution

The fourth proportional to 25,723.44, 38,589.48 and 8,197.20 is: 12,297.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,723.44 : 38,589.48 = 8,197.20 : x
  2. Step 2: Convert to fraction form
    25,723.44/38,589.48 = 8,197.20/x
  3. Step 3: Cross multiply
    25,723.44x = 38,589.48 × 8,197.20
  4. Step 4: Simplify right side
    25,723.44x = 316,325,685.46
  5. Step 5: Solve for x
    x = 316,325,685.46/25,723.44
  6. Step 6: Final answer
    x = 12,297.18

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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.