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Finding the Third Proportional to 6,421.50 and 14,067

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Solution

The third proportional to 6,421.50 and 14,067 is: 30,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.50 : 14,067 = 14,067 : x
  2. Step 2: Convert to fraction form
    6,421.50/14,067 = 14,067/x
  3. Step 3: Cross multiply
    6,421.50x = 14,067 × 14,067
  4. Step 4: Simplify right side
    6,421.50x = 197,880,489
  5. Step 5: Solve for x
    x = 197,880,489/6,421.50
  6. Step 6: Final answer
    x = 30,815.31

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.