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Finding the Third Proportional to 18,780 and 25,050

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Solution

The third proportional to 18,780 and 25,050 is: 33,413.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780 : 25,050 = 25,050 : x
  2. Step 2: Convert to fraction form
    18,780/25,050 = 25,050/x
  3. Step 3: Cross multiply
    18,780x = 25,050 × 25,050
  4. Step 4: Simplify right side
    18,780x = 627,502,500
  5. Step 5: Solve for x
    x = 627,502,500/18,780
  6. Step 6: Final answer
    x = 33,413.34

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.