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Finding the Third Proportional to 56,112 and 86,242

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Solution

The third proportional to 56,112 and 86,242 is: 132,550.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,112 : 86,242 = 86,242 : x
  2. Step 2: Convert to fraction form
    56,112/86,242 = 86,242/x
  3. Step 3: Cross multiply
    56,112x = 86,242 × 86,242
  4. Step 4: Simplify right side
    56,112x = 7,437,682,564
  5. Step 5: Solve for x
    x = 7,437,682,564/56,112
  6. Step 6: Final answer
    x = 132,550.66

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.