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Finding the Fourth Proportional to 17,920.56, 26,891.64 and 6,241.98

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Solution

The fourth proportional to 17,920.56, 26,891.64 and 6,241.98 is: 9,366.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.56 : 26,891.64 = 6,241.98 : x
  2. Step 2: Convert to fraction form
    17,920.56/26,891.64 = 6,241.98/x
  3. Step 3: Cross multiply
    17,920.56x = 26,891.64 × 6,241.98
  4. Step 4: Simplify right side
    17,920.56x = 167,857,079.05
  5. Step 5: Solve for x
    x = 167,857,079.05/17,920.56
  6. Step 6: Final answer
    x = 9,366.73

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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.