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Finding the Third Proportional to 5,105 and 11,047

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Solution

The third proportional to 5,105 and 11,047 is: 23,905.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105 : 11,047 = 11,047 : x
  2. Step 2: Convert to fraction form
    5,105/11,047 = 11,047/x
  3. Step 3: Cross multiply
    5,105x = 11,047 × 11,047
  4. Step 4: Simplify right side
    5,105x = 122,036,209
  5. Step 5: Solve for x
    x = 122,036,209/5,105
  6. Step 6: Final answer
    x = 23,905.23

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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.