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Finding the Third Proportional to 57,358 and 86,901

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Solution

The third proportional to 57,358 and 86,901 is: 131,660.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,358 : 86,901 = 86,901 : x
  2. Step 2: Convert to fraction form
    57,358/86,901 = 86,901/x
  3. Step 3: Cross multiply
    57,358x = 86,901 × 86,901
  4. Step 4: Simplify right side
    57,358x = 7,551,783,801
  5. Step 5: Solve for x
    x = 7,551,783,801/57,358
  6. Step 6: Final answer
    x = 131,660.51

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.