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Finding the Third Proportional to 35,991 and 79,122

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Solution

The third proportional to 35,991 and 79,122 is: 173,940.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,991 : 79,122 = 79,122 : x
  2. Step 2: Convert to fraction form
    35,991/79,122 = 79,122/x
  3. Step 3: Cross multiply
    35,991x = 79,122 × 79,122
  4. Step 4: Simplify right side
    35,991x = 6,260,290,884
  5. Step 5: Solve for x
    x = 6,260,290,884/35,991
  6. Step 6: Final answer
    x = 173,940.45

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.