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Finding the Third Proportional to 21,601.50 and 44,279

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Solution

The third proportional to 21,601.50 and 44,279 is: 90,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,601.50 : 44,279 = 44,279 : x
  2. Step 2: Convert to fraction form
    21,601.50/44,279 = 44,279/x
  3. Step 3: Cross multiply
    21,601.50x = 44,279 × 44,279
  4. Step 4: Simplify right side
    21,601.50x = 1,960,629,841
  5. Step 5: Solve for x
    x = 1,960,629,841/21,601.50
  6. Step 6: Final answer
    x = 90,763.60

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.