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Finding the Third Proportional to 19,394,168 and 42,193,378

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Solution

The third proportional to 19,394,168 and 42,193,378 is: 91,794,664.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,394,168 : 42,193,378 = 42,193,378 : x
  2. Step 2: Convert to fraction form
    19,394,168/42,193,378 = 42,193,378/x
  3. Step 3: Cross multiply
    19,394,168x = 42,193,378 × 42,193,378
  4. Step 4: Simplify right side
    19,394,168x = 1,780,281,147,050,884
  5. Step 5: Solve for x
    x = 1,780,281,147,050,884/19,394,168
  6. Step 6: Final answer
    x = 91,794,664.62

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.