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Finding the Third Proportional to 5,728.50 and 11,079

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Solution

The third proportional to 5,728.50 and 11,079 is: 21,426.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.50 : 11,079 = 11,079 : x
  2. Step 2: Convert to fraction form
    5,728.50/11,079 = 11,079/x
  3. Step 3: Cross multiply
    5,728.50x = 11,079 × 11,079
  4. Step 4: Simplify right side
    5,728.50x = 122,744,241
  5. Step 5: Solve for x
    x = 122,744,241/5,728.50
  6. Step 6: Final answer
    x = 21,426.94

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Why These Related Problems?

These problems maintain the same ratio (1.93) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.