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Finding the Third Proportional to 165.44 and 357

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Solution

The third proportional to 165.44 and 357 is: 770.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.44 : 357 = 357 : x
  2. Step 2: Convert to fraction form
    165.44/357 = 357/x
  3. Step 3: Cross multiply
    165.44x = 357 × 357
  4. Step 4: Simplify right side
    165.44x = 127,449
  5. Step 5: Solve for x
    x = 127,449/165.44
  6. Step 6: Final answer
    x = 770.38

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.