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Finding the Third Proportional to 35,555 and 76,811

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Solution

The third proportional to 35,555 and 76,811 is: 165,938.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,555 : 76,811 = 76,811 : x
  2. Step 2: Convert to fraction form
    35,555/76,811 = 76,811/x
  3. Step 3: Cross multiply
    35,555x = 76,811 × 76,811
  4. Step 4: Simplify right side
    35,555x = 5,899,929,721
  5. Step 5: Solve for x
    x = 5,899,929,721/35,555
  6. Step 6: Final answer
    x = 165,938.12

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.