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Finding the Third Proportional to 18,493.31 and 27,631.13

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Solution

The third proportional to 18,493.31 and 27,631.13 is: 41,284.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.31 : 27,631.13 = 27,631.13 : x
  2. Step 2: Convert to fraction form
    18,493.31/27,631.13 = 27,631.13/x
  3. Step 3: Cross multiply
    18,493.31x = 27,631.13 × 27,631.13
  4. Step 4: Simplify right side
    18,493.31x = 763,479,068.77
  5. Step 5: Solve for x
    x = 763,479,068.77/18,493.31
  6. Step 6: Final answer
    x = 41,284.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.