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Finding the Third Proportional to 7,479 and 16,427

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Solution

The third proportional to 7,479 and 16,427 is: 36,080.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479 : 16,427 = 16,427 : x
  2. Step 2: Convert to fraction form
    7,479/16,427 = 16,427/x
  3. Step 3: Cross multiply
    7,479x = 16,427 × 16,427
  4. Step 4: Simplify right side
    7,479x = 269,846,329
  5. Step 5: Solve for x
    x = 269,846,329/7,479
  6. Step 6: Final answer
    x = 36,080.54

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.