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Finding the Third Proportional to 792.19 and 1,722.38

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Solution

The third proportional to 792.19 and 1,722.38 is: 3,744.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.19 : 1,722.38 = 1,722.38 : x
  2. Step 2: Convert to fraction form
    792.19/1,722.38 = 1,722.38/x
  3. Step 3: Cross multiply
    792.19x = 1,722.38 × 1,722.38
  4. Step 4: Simplify right side
    792.19x = 2,966,575.64
  5. Step 5: Solve for x
    x = 2,966,575.64/792.19
  6. Step 6: Final answer
    x = 3,744.79

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.