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Finding the Third Proportional to 19,869 and 30,005

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Solution

The third proportional to 19,869 and 30,005 is: 45,311.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869 : 30,005 = 30,005 : x
  2. Step 2: Convert to fraction form
    19,869/30,005 = 30,005/x
  3. Step 3: Cross multiply
    19,869x = 30,005 × 30,005
  4. Step 4: Simplify right side
    19,869x = 900,300,025
  5. Step 5: Solve for x
    x = 900,300,025/19,869
  6. Step 6: Final answer
    x = 45,311.79

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.