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Finding the Third Proportional to 825 and 1,797

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Solution

The third proportional to 825 and 1,797 is: 3,914.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    825 : 1,797 = 1,797 : x
  2. Step 2: Convert to fraction form
    825/1,797 = 1,797/x
  3. Step 3: Cross multiply
    825x = 1,797 × 1,797
  4. Step 4: Simplify right side
    825x = 3,229,209
  5. Step 5: Solve for x
    x = 3,229,209/825
  6. Step 6: Final answer
    x = 3,914.19

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.