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Finding the Third Proportional to 3,253.50 and 6,991.88

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Solution

The third proportional to 3,253.50 and 6,991.88 is: 15,025.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.50 : 6,991.88 = 6,991.88 : x
  2. Step 2: Convert to fraction form
    3,253.50/6,991.88 = 6,991.88/x
  3. Step 3: Cross multiply
    3,253.50x = 6,991.88 × 6,991.88
  4. Step 4: Simplify right side
    3,253.50x = 48,886,316.02
  5. Step 5: Solve for x
    x = 48,886,316.02/3,253.50
  6. Step 6: Final answer
    x = 15,025.76

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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.