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Finding the Third Proportional to 326.75 and 766.75

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Solution

The third proportional to 326.75 and 766.75 is: 1,799.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.75 : 766.75 = 766.75 : x
  2. Step 2: Convert to fraction form
    326.75/766.75 = 766.75/x
  3. Step 3: Cross multiply
    326.75x = 766.75 × 766.75
  4. Step 4: Simplify right side
    326.75x = 587,905.56
  5. Step 5: Solve for x
    x = 587,905.56/326.75
  6. Step 6: Final answer
    x = 1,799.25

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.