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Finding the Third Proportional to 33,478 and 69,726

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Solution

The third proportional to 33,478 and 69,726 is: 145,221.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,478 : 69,726 = 69,726 : x
  2. Step 2: Convert to fraction form
    33,478/69,726 = 69,726/x
  3. Step 3: Cross multiply
    33,478x = 69,726 × 69,726
  4. Step 4: Simplify right side
    33,478x = 4,861,715,076
  5. Step 5: Solve for x
    x = 4,861,715,076/33,478
  6. Step 6: Final answer
    x = 145,221.19

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.