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Finding the Third Proportional to 3,963 and 5,574.75

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Solution

The third proportional to 3,963 and 5,574.75 is: 7,842.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963 : 5,574.75 = 5,574.75 : x
  2. Step 2: Convert to fraction form
    3,963/5,574.75 = 5,574.75/x
  3. Step 3: Cross multiply
    3,963x = 5,574.75 × 5,574.75
  4. Step 4: Simplify right side
    3,963x = 31,077,837.56
  5. Step 5: Solve for x
    x = 31,077,837.56/3,963
  6. Step 6: Final answer
    x = 7,842.00

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.