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Finding the Third Proportional to 332.25 and 615

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Solution

The third proportional to 332.25 and 615 is: 1,138.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.25 : 615 = 615 : x
  2. Step 2: Convert to fraction form
    332.25/615 = 615/x
  3. Step 3: Cross multiply
    332.25x = 615 × 615
  4. Step 4: Simplify right side
    332.25x = 378,225
  5. Step 5: Solve for x
    x = 378,225/332.25
  6. Step 6: Final answer
    x = 1,138.37

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.