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Finding the Third Proportional to 60,592 and 128,400

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Solution

The third proportional to 60,592 and 128,400 is: 272,091.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,592 : 128,400 = 128,400 : x
  2. Step 2: Convert to fraction form
    60,592/128,400 = 128,400/x
  3. Step 3: Cross multiply
    60,592x = 128,400 × 128,400
  4. Step 4: Simplify right side
    60,592x = 16,486,560,000
  5. Step 5: Solve for x
    x = 16,486,560,000/60,592
  6. Step 6: Final answer
    x = 272,091.37

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.