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Finding the Third Proportional to 5,367.50 and 11,990

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Solution

The third proportional to 5,367.50 and 11,990 is: 26,783.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,367.50 : 11,990 = 11,990 : x
  2. Step 2: Convert to fraction form
    5,367.50/11,990 = 11,990/x
  3. Step 3: Cross multiply
    5,367.50x = 11,990 × 11,990
  4. Step 4: Simplify right side
    5,367.50x = 143,760,100
  5. Step 5: Solve for x
    x = 143,760,100/5,367.50
  6. Step 6: Final answer
    x = 26,783.44

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.