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Finding the Third Proportional to 19,811 and 43,995

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Solution

The third proportional to 19,811 and 43,995 is: 97,701.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811 : 43,995 = 43,995 : x
  2. Step 2: Convert to fraction form
    19,811/43,995 = 43,995/x
  3. Step 3: Cross multiply
    19,811x = 43,995 × 43,995
  4. Step 4: Simplify right side
    19,811x = 1,935,560,025
  5. Step 5: Solve for x
    x = 1,935,560,025/19,811
  6. Step 6: Final answer
    x = 97,701.28

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.