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Finding the Third Proportional to 162 and 269.25

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Solution

The third proportional to 162 and 269.25 is: 447.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    162 : 269.25 = 269.25 : x
  2. Step 2: Convert to fraction form
    162/269.25 = 269.25/x
  3. Step 3: Cross multiply
    162x = 269.25 × 269.25
  4. Step 4: Simplify right side
    162x = 72,495.56
  5. Step 5: Solve for x
    x = 72,495.56/162
  6. Step 6: Final answer
    x = 447.50

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.