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Finding the Third Proportional to 177.38 and 336

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Solution

The third proportional to 177.38 and 336 is: 636.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.38 : 336 = 336 : x
  2. Step 2: Convert to fraction form
    177.38/336 = 336/x
  3. Step 3: Cross multiply
    177.38x = 336 × 336
  4. Step 4: Simplify right side
    177.38x = 112,896
  5. Step 5: Solve for x
    x = 112,896/177.38
  6. Step 6: Final answer
    x = 636.48

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Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.