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Finding the Third Proportional to 5,149 and 11,078

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Solution

The third proportional to 5,149 and 11,078 is: 23,834.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149 : 11,078 = 11,078 : x
  2. Step 2: Convert to fraction form
    5,149/11,078 = 11,078/x
  3. Step 3: Cross multiply
    5,149x = 11,078 × 11,078
  4. Step 4: Simplify right side
    5,149x = 122,722,084
  5. Step 5: Solve for x
    x = 122,722,084/5,149
  6. Step 6: Final answer
    x = 23,834.16

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.