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Finding the Third Proportional to 185 and 247.25

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Solution

The third proportional to 185 and 247.25 is: 330.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    185 : 247.25 = 247.25 : x
  2. Step 2: Convert to fraction form
    185/247.25 = 247.25/x
  3. Step 3: Cross multiply
    185x = 247.25 × 247.25
  4. Step 4: Simplify right side
    185x = 61,132.56
  5. Step 5: Solve for x
    x = 61,132.56/185
  6. Step 6: Final answer
    x = 330.45

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.