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Finding the Fourth Proportional to 17,744.88, 26,617.68 and 11,912.88

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Solution

The fourth proportional to 17,744.88, 26,617.68 and 11,912.88 is: 17,869.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,744.88 : 26,617.68 = 11,912.88 : x
  2. Step 2: Convert to fraction form
    17,744.88/26,617.68 = 11,912.88/x
  3. Step 3: Cross multiply
    17,744.88x = 26,617.68 × 11,912.88
  4. Step 4: Simplify right side
    17,744.88x = 317,093,227.72
  5. Step 5: Solve for x
    x = 317,093,227.72/17,744.88
  6. Step 6: Final answer
    x = 17,869.56

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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.