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Finding the Third Proportional to 33,728 and 53,712

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Solution

The third proportional to 33,728 and 53,712 is: 85,536.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,728 : 53,712 = 53,712 : x
  2. Step 2: Convert to fraction form
    33,728/53,712 = 53,712/x
  3. Step 3: Cross multiply
    33,728x = 53,712 × 53,712
  4. Step 4: Simplify right side
    33,728x = 2,884,978,944
  5. Step 5: Solve for x
    x = 2,884,978,944/33,728
  6. Step 6: Final answer
    x = 85,536.61

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.