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Finding the Third Proportional to 151.92 and 327.84

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Solution

The third proportional to 151.92 and 327.84 is: 707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.92 : 327.84 = 327.84 : x
  2. Step 2: Convert to fraction form
    151.92/327.84 = 327.84/x
  3. Step 3: Cross multiply
    151.92x = 327.84 × 327.84
  4. Step 4: Simplify right side
    151.92x = 107,481.52
  5. Step 5: Solve for x
    x = 107,481.52/151.92
  6. Step 6: Final answer
    x = 707.48

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.