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Finding the Third Proportional to 8,546.25 and 18,345

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Solution

The third proportional to 8,546.25 and 18,345 is: 39,378.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,546.25 : 18,345 = 18,345 : x
  2. Step 2: Convert to fraction form
    8,546.25/18,345 = 18,345/x
  3. Step 3: Cross multiply
    8,546.25x = 18,345 × 18,345
  4. Step 4: Simplify right side
    8,546.25x = 336,539,025
  5. Step 5: Solve for x
    x = 336,539,025/8,546.25
  6. Step 6: Final answer
    x = 39,378.56

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.