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Finding the Third Proportional to 293.25 and 630.38

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Solution

The third proportional to 293.25 and 630.38 is: 1,355.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.25 : 630.38 = 630.38 : x
  2. Step 2: Convert to fraction form
    293.25/630.38 = 630.38/x
  3. Step 3: Cross multiply
    293.25x = 630.38 × 630.38
  4. Step 4: Simplify right side
    293.25x = 397,372.64
  5. Step 5: Solve for x
    x = 397,372.64/293.25
  6. Step 6: Final answer
    x = 1,355.06

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.