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Finding the Third Proportional to 47,486 and 67,860

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Solution

The third proportional to 47,486 and 67,860 is: 96,975.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,486 : 67,860 = 67,860 : x
  2. Step 2: Convert to fraction form
    47,486/67,860 = 67,860/x
  3. Step 3: Cross multiply
    47,486x = 67,860 × 67,860
  4. Step 4: Simplify right side
    47,486x = 4,604,979,600
  5. Step 5: Solve for x
    x = 4,604,979,600/47,486
  6. Step 6: Final answer
    x = 96,975.52

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.