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Finding the Third Proportional to 57,168 and 87,692

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Solution

The third proportional to 57,168 and 87,692 is: 134,513.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,168 : 87,692 = 87,692 : x
  2. Step 2: Convert to fraction form
    57,168/87,692 = 87,692/x
  3. Step 3: Cross multiply
    57,168x = 87,692 × 87,692
  4. Step 4: Simplify right side
    57,168x = 7,689,886,864
  5. Step 5: Solve for x
    x = 7,689,886,864/57,168
  6. Step 6: Final answer
    x = 134,513.83

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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.