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Finding the Third Proportional to 18,427.50 and 43,281

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Solution

The third proportional to 18,427.50 and 43,281 is: 101,654.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.50 : 43,281 = 43,281 : x
  2. Step 2: Convert to fraction form
    18,427.50/43,281 = 43,281/x
  3. Step 3: Cross multiply
    18,427.50x = 43,281 × 43,281
  4. Step 4: Simplify right side
    18,427.50x = 1,873,244,961
  5. Step 5: Solve for x
    x = 1,873,244,961/18,427.50
  6. Step 6: Final answer
    x = 101,654.86

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.