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Finding the Third Proportional to 627.25 and 922.75

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Solution

The third proportional to 627.25 and 922.75 is: 1,357.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.25 : 922.75 = 922.75 : x
  2. Step 2: Convert to fraction form
    627.25/922.75 = 922.75/x
  3. Step 3: Cross multiply
    627.25x = 922.75 × 922.75
  4. Step 4: Simplify right side
    627.25x = 851,467.56
  5. Step 5: Solve for x
    x = 851,467.56/627.25
  6. Step 6: Final answer
    x = 1,357.46

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.