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Finding the Third Proportional to 808.38 and 1,722.75

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Solution

The third proportional to 808.38 and 1,722.75 is: 3,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    808.38 : 1,722.75 = 1,722.75 : x
  2. Step 2: Convert to fraction form
    808.38/1,722.75 = 1,722.75/x
  3. Step 3: Cross multiply
    808.38x = 1,722.75 × 1,722.75
  4. Step 4: Simplify right side
    808.38x = 2,967,867.56
  5. Step 5: Solve for x
    x = 2,967,867.56/808.38
  6. Step 6: Final answer
    x = 3,671.40

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.