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Finding the Third Proportional to 938.75 and 2,243.25

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Solution

The third proportional to 938.75 and 2,243.25 is: 5,360.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    938.75 : 2,243.25 = 2,243.25 : x
  2. Step 2: Convert to fraction form
    938.75/2,243.25 = 2,243.25/x
  3. Step 3: Cross multiply
    938.75x = 2,243.25 × 2,243.25
  4. Step 4: Simplify right side
    938.75x = 5,032,170.56
  5. Step 5: Solve for x
    x = 5,032,170.56/938.75
  6. Step 6: Final answer
    x = 5,360.50

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.