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Finding the Third Proportional to 18,913.50 and 41,103

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Solution

The third proportional to 18,913.50 and 41,103 is: 89,325.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.50 : 41,103 = 41,103 : x
  2. Step 2: Convert to fraction form
    18,913.50/41,103 = 41,103/x
  3. Step 3: Cross multiply
    18,913.50x = 41,103 × 41,103
  4. Step 4: Simplify right side
    18,913.50x = 1,689,456,609
  5. Step 5: Solve for x
    x = 1,689,456,609/18,913.50
  6. Step 6: Final answer
    x = 89,325.43

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.