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Finding the Third Proportional to 8,682 and 20,485.50

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Solution

The third proportional to 8,682 and 20,485.50 is: 48,336.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682 : 20,485.50 = 20,485.50 : x
  2. Step 2: Convert to fraction form
    8,682/20,485.50 = 20,485.50/x
  3. Step 3: Cross multiply
    8,682x = 20,485.50 × 20,485.50
  4. Step 4: Simplify right side
    8,682x = 419,655,710.25
  5. Step 5: Solve for x
    x = 419,655,710.25/8,682
  6. Step 6: Final answer
    x = 48,336.29

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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.