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Finding the Third Proportional to 101.38 and 162.94

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Solution

The third proportional to 101.38 and 162.94 is: 261.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.38 : 162.94 = 162.94 : x
  2. Step 2: Convert to fraction form
    101.38/162.94 = 162.94/x
  3. Step 3: Cross multiply
    101.38x = 162.94 × 162.94
  4. Step 4: Simplify right side
    101.38x = 26,548.63
  5. Step 5: Solve for x
    x = 26,548.63/101.38
  6. Step 6: Final answer
    x = 261.89

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.