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Finding the Third Proportional to 57,960 and 92,128

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Solution

The third proportional to 57,960 and 92,128 is: 146,438.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,960 : 92,128 = 92,128 : x
  2. Step 2: Convert to fraction form
    57,960/92,128 = 92,128/x
  3. Step 3: Cross multiply
    57,960x = 92,128 × 92,128
  4. Step 4: Simplify right side
    57,960x = 8,487,568,384
  5. Step 5: Solve for x
    x = 8,487,568,384/57,960
  6. Step 6: Final answer
    x = 146,438.38

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.