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Finding the Third Proportional to 47,965.50 and 75,079

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Solution

The third proportional to 47,965.50 and 75,079 is: 117,518.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,965.50 : 75,079 = 75,079 : x
  2. Step 2: Convert to fraction form
    47,965.50/75,079 = 75,079/x
  3. Step 3: Cross multiply
    47,965.50x = 75,079 × 75,079
  4. Step 4: Simplify right side
    47,965.50x = 5,636,856,241
  5. Step 5: Solve for x
    x = 5,636,856,241/47,965.50
  6. Step 6: Final answer
    x = 117,518.97

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.