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Finding the Third Proportional to 799 and 1,891

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Solution

The third proportional to 799 and 1,891 is: 4,475.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    799 : 1,891 = 1,891 : x
  2. Step 2: Convert to fraction form
    799/1,891 = 1,891/x
  3. Step 3: Cross multiply
    799x = 1,891 × 1,891
  4. Step 4: Simplify right side
    799x = 3,575,881
  5. Step 5: Solve for x
    x = 3,575,881/799
  6. Step 6: Final answer
    x = 4,475.45

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.