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Finding the Third Proportional to 38,991.38 and 91,079.44

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Solution

The third proportional to 38,991.38 and 91,079.44 is: 212,751.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,991.38 : 91,079.44 = 91,079.44 : x
  2. Step 2: Convert to fraction form
    38,991.38/91,079.44 = 91,079.44/x
  3. Step 3: Cross multiply
    38,991.38x = 91,079.44 × 91,079.44
  4. Step 4: Simplify right side
    38,991.38x = 8,295,463,935.32
  5. Step 5: Solve for x
    x = 8,295,463,935.32/38,991.38
  6. Step 6: Final answer
    x = 212,751.25

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.