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Finding the Third Proportional to 3,718 and 5,669

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Solution

The third proportional to 3,718 and 5,669 is: 8,643.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718 : 5,669 = 5,669 : x
  2. Step 2: Convert to fraction form
    3,718/5,669 = 5,669/x
  3. Step 3: Cross multiply
    3,718x = 5,669 × 5,669
  4. Step 4: Simplify right side
    3,718x = 32,137,561
  5. Step 5: Solve for x
    x = 32,137,561/3,718
  6. Step 6: Final answer
    x = 8,643.78

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.