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Finding the Third Proportional to 310.25 and 335

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Solution

The third proportional to 310.25 and 335 is: 361.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.25 : 335 = 335 : x
  2. Step 2: Convert to fraction form
    310.25/335 = 335/x
  3. Step 3: Cross multiply
    310.25x = 335 × 335
  4. Step 4: Simplify right side
    310.25x = 112,225
  5. Step 5: Solve for x
    x = 112,225/310.25
  6. Step 6: Final answer
    x = 361.72

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.