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Finding the Third Proportional to 3,694 and 4,018

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Solution

The third proportional to 3,694 and 4,018 is: 4,370.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,694 : 4,018 = 4,018 : x
  2. Step 2: Convert to fraction form
    3,694/4,018 = 4,018/x
  3. Step 3: Cross multiply
    3,694x = 4,018 × 4,018
  4. Step 4: Simplify right side
    3,694x = 16,144,324
  5. Step 5: Solve for x
    x = 16,144,324/3,694
  6. Step 6: Final answer
    x = 4,370.42

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.