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Finding the Third Proportional to 18,516.75 and 29,819.25

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Solution

The third proportional to 18,516.75 and 29,819.25 is: 48,020.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.75 : 29,819.25 = 29,819.25 : x
  2. Step 2: Convert to fraction form
    18,516.75/29,819.25 = 29,819.25/x
  3. Step 3: Cross multiply
    18,516.75x = 29,819.25 × 29,819.25
  4. Step 4: Simplify right side
    18,516.75x = 889,187,670.56
  5. Step 5: Solve for x
    x = 889,187,670.56/18,516.75
  6. Step 6: Final answer
    x = 48,020.72

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.