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Finding the Third Proportional to 18,474 and 35,247

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Solution

The third proportional to 18,474 and 35,247 is: 67,248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474 : 35,247 = 35,247 : x
  2. Step 2: Convert to fraction form
    18,474/35,247 = 35,247/x
  3. Step 3: Cross multiply
    18,474x = 35,247 × 35,247
  4. Step 4: Simplify right side
    18,474x = 1,242,351,009
  5. Step 5: Solve for x
    x = 1,242,351,009/18,474
  6. Step 6: Final answer
    x = 67,248.62

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.