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Finding the Third Proportional to 238 and 372.75

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Solution

The third proportional to 238 and 372.75 is: 583.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    238 : 372.75 = 372.75 : x
  2. Step 2: Convert to fraction form
    238/372.75 = 372.75/x
  3. Step 3: Cross multiply
    238x = 372.75 × 372.75
  4. Step 4: Simplify right side
    238x = 138,942.56
  5. Step 5: Solve for x
    x = 138,942.56/238
  6. Step 6: Final answer
    x = 583.79

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.