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Finding the Third Proportional to 2,768.25 and 3,954

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Solution

The third proportional to 2,768.25 and 3,954 is: 5,647.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.25 : 3,954 = 3,954 : x
  2. Step 2: Convert to fraction form
    2,768.25/3,954 = 3,954/x
  3. Step 3: Cross multiply
    2,768.25x = 3,954 × 3,954
  4. Step 4: Simplify right side
    2,768.25x = 15,634,116
  5. Step 5: Solve for x
    x = 15,634,116/2,768.25
  6. Step 6: Final answer
    x = 5,647.65

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.