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Finding the Third Proportional to 5,611.50 and 11,074.50

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Solution

The third proportional to 5,611.50 and 11,074.50 is: 21,855.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.50 : 11,074.50 = 11,074.50 : x
  2. Step 2: Convert to fraction form
    5,611.50/11,074.50 = 11,074.50/x
  3. Step 3: Cross multiply
    5,611.50x = 11,074.50 × 11,074.50
  4. Step 4: Simplify right side
    5,611.50x = 122,644,550.25
  5. Step 5: Solve for x
    x = 122,644,550.25/5,611.50
  6. Step 6: Final answer
    x = 21,855.93

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.