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Finding the Third Proportional to 38,115 and 83,610

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Solution

The third proportional to 38,115 and 83,610 is: 183,408.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115 : 83,610 = 83,610 : x
  2. Step 2: Convert to fraction form
    38,115/83,610 = 83,610/x
  3. Step 3: Cross multiply
    38,115x = 83,610 × 83,610
  4. Step 4: Simplify right side
    38,115x = 6,990,632,100
  5. Step 5: Solve for x
    x = 6,990,632,100/38,115
  6. Step 6: Final answer
    x = 183,408.95

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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.