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Finding the Third Proportional to 21,682 and 47,336

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Solution

The third proportional to 21,682 and 47,336 is: 103,343.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,682 : 47,336 = 47,336 : x
  2. Step 2: Convert to fraction form
    21,682/47,336 = 47,336/x
  3. Step 3: Cross multiply
    21,682x = 47,336 × 47,336
  4. Step 4: Simplify right side
    21,682x = 2,240,696,896
  5. Step 5: Solve for x
    x = 2,240,696,896/21,682
  6. Step 6: Final answer
    x = 103,343.64

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.