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Finding the Third Proportional to 42,940 and 91,544

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Solution

The third proportional to 42,940 and 91,544 is: 195,163.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,940 : 91,544 = 91,544 : x
  2. Step 2: Convert to fraction form
    42,940/91,544 = 91,544/x
  3. Step 3: Cross multiply
    42,940x = 91,544 × 91,544
  4. Step 4: Simplify right side
    42,940x = 8,380,303,936
  5. Step 5: Solve for x
    x = 8,380,303,936/42,940
  6. Step 6: Final answer
    x = 195,163.11

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.