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Finding the Third Proportional to 18,674 and 40,532

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Solution

The third proportional to 18,674 and 40,532 is: 87,974.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674 : 40,532 = 40,532 : x
  2. Step 2: Convert to fraction form
    18,674/40,532 = 40,532/x
  3. Step 3: Cross multiply
    18,674x = 40,532 × 40,532
  4. Step 4: Simplify right side
    18,674x = 1,642,843,024
  5. Step 5: Solve for x
    x = 1,642,843,024/18,674
  6. Step 6: Final answer
    x = 87,974.89

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.