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Finding the Third Proportional to 18,544 and 39,740

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Solution

The third proportional to 18,544 and 39,740 is: 85,163.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,544 : 39,740 = 39,740 : x
  2. Step 2: Convert to fraction form
    18,544/39,740 = 39,740/x
  3. Step 3: Cross multiply
    18,544x = 39,740 × 39,740
  4. Step 4: Simplify right side
    18,544x = 1,579,267,600
  5. Step 5: Solve for x
    x = 1,579,267,600/18,544
  6. Step 6: Final answer
    x = 85,163.27

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.