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Finding the Third Proportional to 32,278 and 68,930

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Solution

The third proportional to 32,278 and 68,930 is: 147,200.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,278 : 68,930 = 68,930 : x
  2. Step 2: Convert to fraction form
    32,278/68,930 = 68,930/x
  3. Step 3: Cross multiply
    32,278x = 68,930 × 68,930
  4. Step 4: Simplify right side
    32,278x = 4,751,344,900
  5. Step 5: Solve for x
    x = 4,751,344,900/32,278
  6. Step 6: Final answer
    x = 147,200.72

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.