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Finding the Fourth Proportional to 18,408.44, 27,629.26 and 17,227.46

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Solution

The fourth proportional to 18,408.44, 27,629.26 and 17,227.46 is: 25,856.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,408.44 : 27,629.26 = 17,227.46 : x
  2. Step 2: Convert to fraction form
    18,408.44/27,629.26 = 17,227.46/x
  3. Step 3: Cross multiply
    18,408.44x = 27,629.26 × 17,227.46
  4. Step 4: Simplify right side
    18,408.44x = 475,981,971.48
  5. Step 5: Solve for x
    x = 475,981,971.48/18,408.44
  6. Step 6: Final answer
    x = 25,856.73

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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.