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Finding the Third Proportional to 351.75 and 610.69

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Solution

The third proportional to 351.75 and 610.69 is: 1,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.75 : 610.69 = 610.69 : x
  2. Step 2: Convert to fraction form
    351.75/610.69 = 610.69/x
  3. Step 3: Cross multiply
    351.75x = 610.69 × 610.69
  4. Step 4: Simplify right side
    351.75x = 372,939.22
  5. Step 5: Solve for x
    x = 372,939.22/351.75
  6. Step 6: Final answer
    x = 1,060.24

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Why These Related Problems?

These problems maintain the same ratio (1.74) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.