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Finding the Third Proportional to 10,372 and 21,756

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Solution

The third proportional to 10,372 and 21,756 is: 45,634.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,372 : 21,756 = 21,756 : x
  2. Step 2: Convert to fraction form
    10,372/21,756 = 21,756/x
  3. Step 3: Cross multiply
    10,372x = 21,756 × 21,756
  4. Step 4: Simplify right side
    10,372x = 473,323,536
  5. Step 5: Solve for x
    x = 473,323,536/10,372
  6. Step 6: Final answer
    x = 45,634.74

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.