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Finding the Third Proportional to 18,819,320 and 28,769,884

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Solution

The third proportional to 18,819,320 and 28,769,884 is: 43,981,728.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819,320 : 28,769,884 = 28,769,884 : x
  2. Step 2: Convert to fraction form
    18,819,320/28,769,884 = 28,769,884/x
  3. Step 3: Cross multiply
    18,819,320x = 28,769,884 × 28,769,884
  4. Step 4: Simplify right side
    18,819,320x = 827,706,225,373,456
  5. Step 5: Solve for x
    x = 827,706,225,373,456/18,819,320
  6. Step 6: Final answer
    x = 43,981,728.64

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.