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Finding the Third Proportional to 172 and 232

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Solution

The third proportional to 172 and 232 is: 312.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    172 : 232 = 232 : x
  2. Step 2: Convert to fraction form
    172/232 = 232/x
  3. Step 3: Cross multiply
    172x = 232 × 232
  4. Step 4: Simplify right side
    172x = 53,824
  5. Step 5: Solve for x
    x = 53,824/172
  6. Step 6: Final answer
    x = 312.93

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.