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Finding the Third Proportional to 9,213.75 and 18,974.25

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Solution

The third proportional to 9,213.75 and 18,974.25 is: 39,074.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,213.75 : 18,974.25 = 18,974.25 : x
  2. Step 2: Convert to fraction form
    9,213.75/18,974.25 = 18,974.25/x
  3. Step 3: Cross multiply
    9,213.75x = 18,974.25 × 18,974.25
  4. Step 4: Simplify right side
    9,213.75x = 360,022,163.06
  5. Step 5: Solve for x
    x = 360,022,163.06/9,213.75
  6. Step 6: Final answer
    x = 39,074.44

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.