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Finding the Third Proportional to 3,175 and 4,755

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Solution

The third proportional to 3,175 and 4,755 is: 7,121.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175 : 4,755 = 4,755 : x
  2. Step 2: Convert to fraction form
    3,175/4,755 = 4,755/x
  3. Step 3: Cross multiply
    3,175x = 4,755 × 4,755
  4. Step 4: Simplify right side
    3,175x = 22,610,025
  5. Step 5: Solve for x
    x = 22,610,025/3,175
  6. Step 6: Final answer
    x = 7,121.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.