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Finding the Third Proportional to 13,239 and 14,622

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Solution

The third proportional to 13,239 and 14,622 is: 16,149.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239 : 14,622 = 14,622 : x
  2. Step 2: Convert to fraction form
    13,239/14,622 = 14,622/x
  3. Step 3: Cross multiply
    13,239x = 14,622 × 14,622
  4. Step 4: Simplify right side
    13,239x = 213,802,884
  5. Step 5: Solve for x
    x = 213,802,884/13,239
  6. Step 6: Final answer
    x = 16,149.47

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.