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Finding the Third Proportional to 2,855.25 and 6,615

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Solution

The third proportional to 2,855.25 and 6,615 is: 15,325.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.25 : 6,615 = 6,615 : x
  2. Step 2: Convert to fraction form
    2,855.25/6,615 = 6,615/x
  3. Step 3: Cross multiply
    2,855.25x = 6,615 × 6,615
  4. Step 4: Simplify right side
    2,855.25x = 43,758,225
  5. Step 5: Solve for x
    x = 43,758,225/2,855.25
  6. Step 6: Final answer
    x = 15,325.53

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.