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Finding the Third Proportional to 38,161.13 and 68,121

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Solution

The third proportional to 38,161.13 and 68,121 is: 121,602.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,161.13 : 68,121 = 68,121 : x
  2. Step 2: Convert to fraction form
    38,161.13/68,121 = 68,121/x
  3. Step 3: Cross multiply
    38,161.13x = 68,121 × 68,121
  4. Step 4: Simplify right side
    38,161.13x = 4,640,470,641
  5. Step 5: Solve for x
    x = 4,640,470,641/38,161.13
  6. Step 6: Final answer
    x = 121,602.04

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.