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Finding the Third Proportional to 40,979.25 and 90,087.75

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Solution

The third proportional to 40,979.25 and 90,087.75 is: 198,046.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,979.25 : 90,087.75 = 90,087.75 : x
  2. Step 2: Convert to fraction form
    40,979.25/90,087.75 = 90,087.75/x
  3. Step 3: Cross multiply
    40,979.25x = 90,087.75 × 90,087.75
  4. Step 4: Simplify right side
    40,979.25x = 8,115,802,700.06
  5. Step 5: Solve for x
    x = 8,115,802,700.06/40,979.25
  6. Step 6: Final answer
    x = 198,046.64

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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.