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Finding the Third Proportional to 28,113.75 and 60,378.75

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Solution

The third proportional to 28,113.75 and 60,378.75 is: 129,672.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.75 : 60,378.75 = 60,378.75 : x
  2. Step 2: Convert to fraction form
    28,113.75/60,378.75 = 60,378.75/x
  3. Step 3: Cross multiply
    28,113.75x = 60,378.75 × 60,378.75
  4. Step 4: Simplify right side
    28,113.75x = 3,645,593,451.56
  5. Step 5: Solve for x
    x = 3,645,593,451.56/28,113.75
  6. Step 6: Final answer
    x = 129,672.97

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.