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Finding the Third Proportional to 18,033.75 and 38,731.50

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Solution

The third proportional to 18,033.75 and 38,731.50 is: 83,184.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,033.75 : 38,731.50 = 38,731.50 : x
  2. Step 2: Convert to fraction form
    18,033.75/38,731.50 = 38,731.50/x
  3. Step 3: Cross multiply
    18,033.75x = 38,731.50 × 38,731.50
  4. Step 4: Simplify right side
    18,033.75x = 1,500,129,092.25
  5. Step 5: Solve for x
    x = 1,500,129,092.25/18,033.75
  6. Step 6: Final answer
    x = 83,184.53

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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.