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Finding the Third Proportional to 192.75 and 279

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Solution

The third proportional to 192.75 and 279 is: 403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.75 : 279 = 279 : x
  2. Step 2: Convert to fraction form
    192.75/279 = 279/x
  3. Step 3: Cross multiply
    192.75x = 279 × 279
  4. Step 4: Simplify right side
    192.75x = 77,841
  5. Step 5: Solve for x
    x = 77,841/192.75
  6. Step 6: Final answer
    x = 403.84

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.