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Finding the Third Proportional to 18,318 and 25,497

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Solution

The third proportional to 18,318 and 25,497 is: 35,489.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318 : 25,497 = 25,497 : x
  2. Step 2: Convert to fraction form
    18,318/25,497 = 25,497/x
  3. Step 3: Cross multiply
    18,318x = 25,497 × 25,497
  4. Step 4: Simplify right side
    18,318x = 650,097,009
  5. Step 5: Solve for x
    x = 650,097,009/18,318
  6. Step 6: Final answer
    x = 35,489.52

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.