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Finding the Third Proportional to 31,833 and 68,364

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Solution

The third proportional to 31,833 and 68,364 is: 146,817.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,833 : 68,364 = 68,364 : x
  2. Step 2: Convert to fraction form
    31,833/68,364 = 68,364/x
  3. Step 3: Cross multiply
    31,833x = 68,364 × 68,364
  4. Step 4: Simplify right side
    31,833x = 4,673,636,496
  5. Step 5: Solve for x
    x = 4,673,636,496/31,833
  6. Step 6: Final answer
    x = 146,817.34

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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.