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Finding the Third Proportional to 153.25 and 327

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Solution

The third proportional to 153.25 and 327 is: 697.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.25 : 327 = 327 : x
  2. Step 2: Convert to fraction form
    153.25/327 = 327/x
  3. Step 3: Cross multiply
    153.25x = 327 × 327
  4. Step 4: Simplify right side
    153.25x = 106,929
  5. Step 5: Solve for x
    x = 106,929/153.25
  6. Step 6: Final answer
    x = 697.74

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.