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Finding the Third Proportional to 31,992.75 and 69,657.75

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Solution

The third proportional to 31,992.75 and 69,657.75 is: 151,665.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,992.75 : 69,657.75 = 69,657.75 : x
  2. Step 2: Convert to fraction form
    31,992.75/69,657.75 = 69,657.75/x
  3. Step 3: Cross multiply
    31,992.75x = 69,657.75 × 69,657.75
  4. Step 4: Simplify right side
    31,992.75x = 4,852,202,135.06
  5. Step 5: Solve for x
    x = 4,852,202,135.06/31,992.75
  6. Step 6: Final answer
    x = 151,665.68

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.