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Finding the Third Proportional to 132.47 and 236.25

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Solution

The third proportional to 132.47 and 236.25 is: 421.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.47 : 236.25 = 236.25 : x
  2. Step 2: Convert to fraction form
    132.47/236.25 = 236.25/x
  3. Step 3: Cross multiply
    132.47x = 236.25 × 236.25
  4. Step 4: Simplify right side
    132.47x = 55,814.06
  5. Step 5: Solve for x
    x = 55,814.06/132.47
  6. Step 6: Final answer
    x = 421.34

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.