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Finding the Third Proportional to 57,268 and 86,529

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Solution

The third proportional to 57,268 and 86,529 is: 130,740.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,268 : 86,529 = 86,529 : x
  2. Step 2: Convert to fraction form
    57,268/86,529 = 86,529/x
  3. Step 3: Cross multiply
    57,268x = 86,529 × 86,529
  4. Step 4: Simplify right side
    57,268x = 7,487,267,841
  5. Step 5: Solve for x
    x = 7,487,267,841/57,268
  6. Step 6: Final answer
    x = 130,740.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.