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Finding the Third Proportional to 19,973.25 and 31,331.25

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Solution

The third proportional to 19,973.25 and 31,331.25 is: 49,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,973.25 : 31,331.25 = 31,331.25 : x
  2. Step 2: Convert to fraction form
    19,973.25/31,331.25 = 31,331.25/x
  3. Step 3: Cross multiply
    19,973.25x = 31,331.25 × 31,331.25
  4. Step 4: Simplify right side
    19,973.25x = 981,647,226.56
  5. Step 5: Solve for x
    x = 981,647,226.56/19,973.25
  6. Step 6: Final answer
    x = 49,148.10

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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.