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Finding the Third Proportional to 662.75 and 970

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Solution

The third proportional to 662.75 and 970 is: 1,419.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.75 : 970 = 970 : x
  2. Step 2: Convert to fraction form
    662.75/970 = 970/x
  3. Step 3: Cross multiply
    662.75x = 970 × 970
  4. Step 4: Simplify right side
    662.75x = 940,900
  5. Step 5: Solve for x
    x = 940,900/662.75
  6. Step 6: Final answer
    x = 1,419.69

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.