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Finding the Third Proportional to 37,889,928 and 55,396,400

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Solution

The third proportional to 37,889,928 and 55,396,400 is: 80,991,474.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,889,928 : 55,396,400 = 55,396,400 : x
  2. Step 2: Convert to fraction form
    37,889,928/55,396,400 = 55,396,400/x
  3. Step 3: Cross multiply
    37,889,928x = 55,396,400 × 55,396,400
  4. Step 4: Simplify right side
    37,889,928x = 3,068,761,132,960,000
  5. Step 5: Solve for x
    x = 3,068,761,132,960,000/37,889,928
  6. Step 6: Final answer
    x = 80,991,474.38

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.