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Finding the Third Proportional to 38,066.75 and 81,966

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Solution

The third proportional to 38,066.75 and 81,966 is: 176,490.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,066.75 : 81,966 = 81,966 : x
  2. Step 2: Convert to fraction form
    38,066.75/81,966 = 81,966/x
  3. Step 3: Cross multiply
    38,066.75x = 81,966 × 81,966
  4. Step 4: Simplify right side
    38,066.75x = 6,718,425,156
  5. Step 5: Solve for x
    x = 6,718,425,156/38,066.75
  6. Step 6: Final answer
    x = 176,490.64

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.