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Finding the Third Proportional to 25,800 and 38,600

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Solution

The third proportional to 25,800 and 38,600 is: 57,750.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,800 : 38,600 = 38,600 : x
  2. Step 2: Convert to fraction form
    25,800/38,600 = 38,600/x
  3. Step 3: Cross multiply
    25,800x = 38,600 × 38,600
  4. Step 4: Simplify right side
    25,800x = 1,489,960,000
  5. Step 5: Solve for x
    x = 1,489,960,000/25,800
  6. Step 6: Final answer
    x = 57,750.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.