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Finding the Third Proportional to 7,219.55 and 15,517.41

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Solution

The third proportional to 7,219.55 and 15,517.41 is: 33,352.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.55 : 15,517.41 = 15,517.41 : x
  2. Step 2: Convert to fraction form
    7,219.55/15,517.41 = 15,517.41/x
  3. Step 3: Cross multiply
    7,219.55x = 15,517.41 × 15,517.41
  4. Step 4: Simplify right side
    7,219.55x = 240,789,896.73
  5. Step 5: Solve for x
    x = 240,789,896.73/7,219.55
  6. Step 6: Final answer
    x = 33,352.49

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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.