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Finding the Third Proportional to 379 and 832.75

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Solution

The third proportional to 379 and 832.75 is: 1,829.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    379 : 832.75 = 832.75 : x
  2. Step 2: Convert to fraction form
    379/832.75 = 832.75/x
  3. Step 3: Cross multiply
    379x = 832.75 × 832.75
  4. Step 4: Simplify right side
    379x = 693,472.56
  5. Step 5: Solve for x
    x = 693,472.56/379
  6. Step 6: Final answer
    x = 1,829.74

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.