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Finding the Third Proportional to 3,357 and 7,213.50

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Solution

The third proportional to 3,357 and 7,213.50 is: 15,500.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,357 : 7,213.50 = 7,213.50 : x
  2. Step 2: Convert to fraction form
    3,357/7,213.50 = 7,213.50/x
  3. Step 3: Cross multiply
    3,357x = 7,213.50 × 7,213.50
  4. Step 4: Simplify right side
    3,357x = 52,034,582.25
  5. Step 5: Solve for x
    x = 52,034,582.25/3,357
  6. Step 6: Final answer
    x = 15,500.32

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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.