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Finding the Fourth Proportional to 17,891.87, 24,691.55 and 9,934.09

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Solution

The fourth proportional to 17,891.87, 24,691.55 and 9,934.09 is: 13,709.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,891.87 : 24,691.55 = 9,934.09 : x
  2. Step 2: Convert to fraction form
    17,891.87/24,691.55 = 9,934.09/x
  3. Step 3: Cross multiply
    17,891.87x = 24,691.55 × 9,934.09
  4. Step 4: Simplify right side
    17,891.87x = 245,288,079.94
  5. Step 5: Solve for x
    x = 245,288,079.94/17,891.87
  6. Step 6: Final answer
    x = 13,709.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.