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Finding the Third Proportional to 3,859 and 8,444

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Solution

The third proportional to 3,859 and 8,444 is: 18,476.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859 : 8,444 = 8,444 : x
  2. Step 2: Convert to fraction form
    3,859/8,444 = 8,444/x
  3. Step 3: Cross multiply
    3,859x = 8,444 × 8,444
  4. Step 4: Simplify right side
    3,859x = 71,301,136
  5. Step 5: Solve for x
    x = 71,301,136/3,859
  6. Step 6: Final answer
    x = 18,476.58

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.