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Finding the Third Proportional to 31,214.25 and 67,110.75

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Solution

The third proportional to 31,214.25 and 67,110.75 is: 144,288.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,214.25 : 67,110.75 = 67,110.75 : x
  2. Step 2: Convert to fraction form
    31,214.25/67,110.75 = 67,110.75/x
  3. Step 3: Cross multiply
    31,214.25x = 67,110.75 × 67,110.75
  4. Step 4: Simplify right side
    31,214.25x = 4,503,852,765.56
  5. Step 5: Solve for x
    x = 4,503,852,765.56/31,214.25
  6. Step 6: Final answer
    x = 144,288.35

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.