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Finding the Fourth Proportional to 12,593.88, 17,379.27 and 8,614.85

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Solution

The fourth proportional to 12,593.88, 17,379.27 and 8,614.85 is: 11,888.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,593.88 : 17,379.27 = 8,614.85 : x
  2. Step 2: Convert to fraction form
    12,593.88/17,379.27 = 8,614.85/x
  3. Step 3: Cross multiply
    12,593.88x = 17,379.27 × 8,614.85
  4. Step 4: Simplify right side
    12,593.88x = 149,719,717.26
  5. Step 5: Solve for x
    x = 149,719,717.26/12,593.88
  6. Step 6: Final answer
    x = 11,888.29

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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.