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Finding the Third Proportional to 51,914.63 and 81,331.88

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Solution

The third proportional to 51,914.63 and 81,331.88 is: 127,418.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,914.63 : 81,331.88 = 81,331.88 : x
  2. Step 2: Convert to fraction form
    51,914.63/81,331.88 = 81,331.88/x
  3. Step 3: Cross multiply
    51,914.63x = 81,331.88 × 81,331.88
  4. Step 4: Simplify right side
    51,914.63x = 6,614,873,891.02
  5. Step 5: Solve for x
    x = 6,614,873,891.02/51,914.63
  6. Step 6: Final answer
    x = 127,418.31

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.