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Finding the Third Proportional to 18,994,536 and 38,659,792.50

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Solution

The third proportional to 18,994,536 and 38,659,792.50 is: 78,684,709.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,994,536 : 38,659,792.50 = 38,659,792.50 : x
  2. Step 2: Convert to fraction form
    18,994,536/38,659,792.50 = 38,659,792.50/x
  3. Step 3: Cross multiply
    18,994,536x = 38,659,792.50 × 38,659,792.50
  4. Step 4: Simplify right side
    18,994,536x = 1,494,579,556,143,056.25
  5. Step 5: Solve for x
    x = 1,494,579,556,143,056.25/18,994,536
  6. Step 6: Final answer
    x = 78,684,709.97

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.