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Finding the Third Proportional to 18,590 and 25,218

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Solution

The third proportional to 18,590 and 25,218 is: 34,209.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590 : 25,218 = 25,218 : x
  2. Step 2: Convert to fraction form
    18,590/25,218 = 25,218/x
  3. Step 3: Cross multiply
    18,590x = 25,218 × 25,218
  4. Step 4: Simplify right side
    18,590x = 635,947,524
  5. Step 5: Solve for x
    x = 635,947,524/18,590
  6. Step 6: Final answer
    x = 34,209.12

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.