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Finding the Third Proportional to 6,621 and 12,229.50

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Solution

The third proportional to 6,621 and 12,229.50 is: 22,588.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621 : 12,229.50 = 12,229.50 : x
  2. Step 2: Convert to fraction form
    6,621/12,229.50 = 12,229.50/x
  3. Step 3: Cross multiply
    6,621x = 12,229.50 × 12,229.50
  4. Step 4: Simplify right side
    6,621x = 149,560,670.25
  5. Step 5: Solve for x
    x = 149,560,670.25/6,621
  6. Step 6: Final answer
    x = 22,588.83

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.