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Finding the Third Proportional to 238.75 and 367.25

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Solution

The third proportional to 238.75 and 367.25 is: 564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.75 : 367.25 = 367.25 : x
  2. Step 2: Convert to fraction form
    238.75/367.25 = 367.25/x
  3. Step 3: Cross multiply
    238.75x = 367.25 × 367.25
  4. Step 4: Simplify right side
    238.75x = 134,872.56
  5. Step 5: Solve for x
    x = 134,872.56/238.75
  6. Step 6: Final answer
    x = 564.91

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.