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Finding the Third Proportional to 764 and 834

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Solution

The third proportional to 764 and 834 is: 910.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    764 : 834 = 834 : x
  2. Step 2: Convert to fraction form
    764/834 = 834/x
  3. Step 3: Cross multiply
    764x = 834 × 834
  4. Step 4: Simplify right side
    764x = 695,556
  5. Step 5: Solve for x
    x = 695,556/764
  6. Step 6: Final answer
    x = 910.41

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.