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Finding the Third Proportional to 18,607.50 and 43,917

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Solution

The third proportional to 18,607.50 and 43,917 is: 103,651.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.50 : 43,917 = 43,917 : x
  2. Step 2: Convert to fraction form
    18,607.50/43,917 = 43,917/x
  3. Step 3: Cross multiply
    18,607.50x = 43,917 × 43,917
  4. Step 4: Simplify right side
    18,607.50x = 1,928,702,889
  5. Step 5: Solve for x
    x = 1,928,702,889/18,607.50
  6. Step 6: Final answer
    x = 103,651.91

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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.