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Finding the Third Proportional to 5,380,290 and 11,639,754

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Solution

The third proportional to 5,380,290 and 11,639,754 is: 25,181,518.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380,290 : 11,639,754 = 11,639,754 : x
  2. Step 2: Convert to fraction form
    5,380,290/11,639,754 = 11,639,754/x
  3. Step 3: Cross multiply
    5,380,290x = 11,639,754 × 11,639,754
  4. Step 4: Simplify right side
    5,380,290x = 135,483,873,180,516
  5. Step 5: Solve for x
    x = 135,483,873,180,516/5,380,290
  6. Step 6: Final answer
    x = 25,181,518.69

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.