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Finding the Third Proportional to 53,856 and 82,242

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Solution

The third proportional to 53,856 and 82,242 is: 125,589.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,856 : 82,242 = 82,242 : x
  2. Step 2: Convert to fraction form
    53,856/82,242 = 82,242/x
  3. Step 3: Cross multiply
    53,856x = 82,242 × 82,242
  4. Step 4: Simplify right side
    53,856x = 6,763,746,564
  5. Step 5: Solve for x
    x = 6,763,746,564/53,856
  6. Step 6: Final answer
    x = 125,589.47

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.