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Finding the Third Proportional to 675 and 965.25

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Solution

The third proportional to 675 and 965.25 is: 1,380.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    675 : 965.25 = 965.25 : x
  2. Step 2: Convert to fraction form
    675/965.25 = 965.25/x
  3. Step 3: Cross multiply
    675x = 965.25 × 965.25
  4. Step 4: Simplify right side
    675x = 931,707.56
  5. Step 5: Solve for x
    x = 931,707.56/675
  6. Step 6: Final answer
    x = 1,380.31

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.