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Finding the Third Proportional to 3,318 and 7,633.50

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Solution

The third proportional to 3,318 and 7,633.50 is: 17,561.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318 : 7,633.50 = 7,633.50 : x
  2. Step 2: Convert to fraction form
    3,318/7,633.50 = 7,633.50/x
  3. Step 3: Cross multiply
    3,318x = 7,633.50 × 7,633.50
  4. Step 4: Simplify right side
    3,318x = 58,270,322.25
  5. Step 5: Solve for x
    x = 58,270,322.25/3,318
  6. Step 6: Final answer
    x = 17,561.88

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.