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Finding the Third Proportional to 16,977 and 36,555

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Solution

The third proportional to 16,977 and 36,555 is: 78,710.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,977 : 36,555 = 36,555 : x
  2. Step 2: Convert to fraction form
    16,977/36,555 = 36,555/x
  3. Step 3: Cross multiply
    16,977x = 36,555 × 36,555
  4. Step 4: Simplify right side
    16,977x = 1,336,268,025
  5. Step 5: Solve for x
    x = 1,336,268,025/16,977
  6. Step 6: Final answer
    x = 78,710.49

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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.