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Finding the Third Proportional to 18,488.25 and 39,375

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Solution

The third proportional to 18,488.25 and 39,375 is: 83,858.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.25 : 39,375 = 39,375 : x
  2. Step 2: Convert to fraction form
    18,488.25/39,375 = 39,375/x
  3. Step 3: Cross multiply
    18,488.25x = 39,375 × 39,375
  4. Step 4: Simplify right side
    18,488.25x = 1,550,390,625
  5. Step 5: Solve for x
    x = 1,550,390,625/18,488.25
  6. Step 6: Final answer
    x = 83,858.16

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.