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Finding the Third Proportional to 849 and 1,791

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Solution

The third proportional to 849 and 1,791 is: 3,778.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    849 : 1,791 = 1,791 : x
  2. Step 2: Convert to fraction form
    849/1,791 = 1,791/x
  3. Step 3: Cross multiply
    849x = 1,791 × 1,791
  4. Step 4: Simplify right side
    849x = 3,207,681
  5. Step 5: Solve for x
    x = 3,207,681/849
  6. Step 6: Final answer
    x = 3,778.19

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These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.