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Finding the Third Proportional to 18,201.75 and 38,606.25

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Solution

The third proportional to 18,201.75 and 38,606.25 is: 81,884.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.75 : 38,606.25 = 38,606.25 : x
  2. Step 2: Convert to fraction form
    18,201.75/38,606.25 = 38,606.25/x
  3. Step 3: Cross multiply
    18,201.75x = 38,606.25 × 38,606.25
  4. Step 4: Simplify right side
    18,201.75x = 1,490,442,539.06
  5. Step 5: Solve for x
    x = 1,490,442,539.06/18,201.75
  6. Step 6: Final answer
    x = 81,884.57

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.