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Finding the Third Proportional to 312 and 341.44

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Solution

The third proportional to 312 and 341.44 is: 373.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    312 : 341.44 = 341.44 : x
  2. Step 2: Convert to fraction form
    312/341.44 = 341.44/x
  3. Step 3: Cross multiply
    312x = 341.44 × 341.44
  4. Step 4: Simplify right side
    312x = 116,579.57
  5. Step 5: Solve for x
    x = 116,579.57/312
  6. Step 6: Final answer
    x = 373.65

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.