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Finding the Third Proportional to 18,272 and 39,925

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Solution

The third proportional to 18,272 and 39,925 is: 87,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272 : 39,925 = 39,925 : x
  2. Step 2: Convert to fraction form
    18,272/39,925 = 39,925/x
  3. Step 3: Cross multiply
    18,272x = 39,925 × 39,925
  4. Step 4: Simplify right side
    18,272x = 1,594,005,625
  5. Step 5: Solve for x
    x = 1,594,005,625/18,272
  6. Step 6: Final answer
    x = 87,237.61

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.