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Finding the Third Proportional to 9,266 and 19,991

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Solution

The third proportional to 9,266 and 19,991 is: 43,129.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,266 : 19,991 = 19,991 : x
  2. Step 2: Convert to fraction form
    9,266/19,991 = 19,991/x
  3. Step 3: Cross multiply
    9,266x = 19,991 × 19,991
  4. Step 4: Simplify right side
    9,266x = 399,640,081
  5. Step 5: Solve for x
    x = 399,640,081/9,266
  6. Step 6: Final answer
    x = 43,129.73

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.