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Finding the Third Proportional to 18,533 and 40,756

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Solution

The third proportional to 18,533 and 40,756 is: 89,626.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,533 : 40,756 = 40,756 : x
  2. Step 2: Convert to fraction form
    18,533/40,756 = 40,756/x
  3. Step 3: Cross multiply
    18,533x = 40,756 × 40,756
  4. Step 4: Simplify right side
    18,533x = 1,661,051,536
  5. Step 5: Solve for x
    x = 1,661,051,536/18,533
  6. Step 6: Final answer
    x = 89,626.69

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.