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Finding the Third Proportional to 5,190.50 and 11,009

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Solution

The third proportional to 5,190.50 and 11,009 is: 23,349.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.50 : 11,009 = 11,009 : x
  2. Step 2: Convert to fraction form
    5,190.50/11,009 = 11,009/x
  3. Step 3: Cross multiply
    5,190.50x = 11,009 × 11,009
  4. Step 4: Simplify right side
    5,190.50x = 121,198,081
  5. Step 5: Solve for x
    x = 121,198,081/5,190.50
  6. Step 6: Final answer
    x = 23,349.98

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.