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Finding the Third Proportional to 764.75 and 1,696

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Solution

The third proportional to 764.75 and 1,696 is: 3,761.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    764.75 : 1,696 = 1,696 : x
  2. Step 2: Convert to fraction form
    764.75/1,696 = 1,696/x
  3. Step 3: Cross multiply
    764.75x = 1,696 × 1,696
  4. Step 4: Simplify right side
    764.75x = 2,876,416
  5. Step 5: Solve for x
    x = 2,876,416/764.75
  6. Step 6: Final answer
    x = 3,761.25

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.