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Finding the Third Proportional to 179.75 and 379

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Solution

The third proportional to 179.75 and 379 is: 799.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.75 : 379 = 379 : x
  2. Step 2: Convert to fraction form
    179.75/379 = 379/x
  3. Step 3: Cross multiply
    179.75x = 379 × 379
  4. Step 4: Simplify right side
    179.75x = 143,641
  5. Step 5: Solve for x
    x = 143,641/179.75
  6. Step 6: Final answer
    x = 799.12

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.