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Finding the Fourth Proportional to 16,960.25, 25,435.19 and 11,728.88

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Solution

The fourth proportional to 16,960.25, 25,435.19 and 11,728.88 is: 17,589.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,960.25 : 25,435.19 = 11,728.88 : x
  2. Step 2: Convert to fraction form
    16,960.25/25,435.19 = 11,728.88/x
  3. Step 3: Cross multiply
    16,960.25x = 25,435.19 × 11,728.88
  4. Step 4: Simplify right side
    16,960.25x = 298,326,105.47
  5. Step 5: Solve for x
    x = 298,326,105.47/16,960.25
  6. Step 6: Final answer
    x = 17,589.73

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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.