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Finding the Third Proportional to 12,922,696 and 20,007,176

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Solution

The third proportional to 12,922,696 and 20,007,176 is: 30,975,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922,696 : 20,007,176 = 20,007,176 : x
  2. Step 2: Convert to fraction form
    12,922,696/20,007,176 = 20,007,176/x
  3. Step 3: Cross multiply
    12,922,696x = 20,007,176 × 20,007,176
  4. Step 4: Simplify right side
    12,922,696x = 400,287,091,494,976
  5. Step 5: Solve for x
    x = 400,287,091,494,976/12,922,696
  6. Step 6: Final answer
    x = 30,975,509.41

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.