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Finding the Third Proportional to 356.25 and 627

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Solution

The third proportional to 356.25 and 627 is: 1,103.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.25 : 627 = 627 : x
  2. Step 2: Convert to fraction form
    356.25/627 = 627/x
  3. Step 3: Cross multiply
    356.25x = 627 × 627
  4. Step 4: Simplify right side
    356.25x = 393,129
  5. Step 5: Solve for x
    x = 393,129/356.25
  6. Step 6: Final answer
    x = 1,103.52

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.