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Finding the Third Proportional to 30,678.75 and 33,162.75

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Solution

The third proportional to 30,678.75 and 33,162.75 is: 35,847.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,678.75 : 33,162.75 = 33,162.75 : x
  2. Step 2: Convert to fraction form
    30,678.75/33,162.75 = 33,162.75/x
  3. Step 3: Cross multiply
    30,678.75x = 33,162.75 × 33,162.75
  4. Step 4: Simplify right side
    30,678.75x = 1,099,767,987.56
  5. Step 5: Solve for x
    x = 1,099,767,987.56/30,678.75
  6. Step 6: Final answer
    x = 35,847.87

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.