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Finding the Third Proportional to 18,620.50 and 43,916.75

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Solution

The third proportional to 18,620.50 and 43,916.75 is: 103,578.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620.50 : 43,916.75 = 43,916.75 : x
  2. Step 2: Convert to fraction form
    18,620.50/43,916.75 = 43,916.75/x
  3. Step 3: Cross multiply
    18,620.50x = 43,916.75 × 43,916.75
  4. Step 4: Simplify right side
    18,620.50x = 1,928,680,930.56
  5. Step 5: Solve for x
    x = 1,928,680,930.56/18,620.50
  6. Step 6: Final answer
    x = 103,578.36

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.