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Finding the Third Proportional to 271.69 and 352.88

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Solution

The third proportional to 271.69 and 352.88 is: 458.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.69 : 352.88 = 352.88 : x
  2. Step 2: Convert to fraction form
    271.69/352.88 = 352.88/x
  3. Step 3: Cross multiply
    271.69x = 352.88 × 352.88
  4. Step 4: Simplify right side
    271.69x = 124,520.77
  5. Step 5: Solve for x
    x = 124,520.77/271.69
  6. Step 6: Final answer
    x = 458.32

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.