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Finding the Third Proportional to 18,474 and 25,239

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Solution

The third proportional to 18,474 and 25,239 is: 34,481.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474 : 25,239 = 25,239 : x
  2. Step 2: Convert to fraction form
    18,474/25,239 = 25,239/x
  3. Step 3: Cross multiply
    18,474x = 25,239 × 25,239
  4. Step 4: Simplify right side
    18,474x = 637,007,121
  5. Step 5: Solve for x
    x = 637,007,121/18,474
  6. Step 6: Final answer
    x = 34,481.28

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.