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Finding the Third Proportional to 238.75 and 365.06

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Solution

The third proportional to 238.75 and 365.06 is: 558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.75 : 365.06 = 365.06 : x
  2. Step 2: Convert to fraction form
    238.75/365.06 = 365.06/x
  3. Step 3: Cross multiply
    238.75x = 365.06 × 365.06
  4. Step 4: Simplify right side
    238.75x = 133,270.63
  5. Step 5: Solve for x
    x = 133,270.63/238.75
  6. Step 6: Final answer
    x = 558.20

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.