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Finding the Third Proportional to 13,163 and 17,078

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Solution

The third proportional to 13,163 and 17,078 is: 22,157.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163 : 17,078 = 17,078 : x
  2. Step 2: Convert to fraction form
    13,163/17,078 = 17,078/x
  3. Step 3: Cross multiply
    13,163x = 17,078 × 17,078
  4. Step 4: Simplify right side
    13,163x = 291,658,084
  5. Step 5: Solve for x
    x = 291,658,084/13,163
  6. Step 6: Final answer
    x = 22,157.42

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.