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Finding the Third Proportional to 31,699.25 and 66,934.75

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Solution

The third proportional to 31,699.25 and 66,934.75 is: 141,336.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,699.25 : 66,934.75 = 66,934.75 : x
  2. Step 2: Convert to fraction form
    31,699.25/66,934.75 = 66,934.75/x
  3. Step 3: Cross multiply
    31,699.25x = 66,934.75 × 66,934.75
  4. Step 4: Simplify right side
    31,699.25x = 4,480,260,757.56
  5. Step 5: Solve for x
    x = 4,480,260,757.56/31,699.25
  6. Step 6: Final answer
    x = 141,336.49

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.