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Finding the Third Proportional to 6,216,912.63 and 13,378,609.27

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Solution

The third proportional to 6,216,912.63 and 13,378,609.27 is: 28,790,365.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216,912.63 : 13,378,609.27 = 13,378,609.27 : x
  2. Step 2: Convert to fraction form
    6,216,912.63/13,378,609.27 = 13,378,609.27/x
  3. Step 3: Cross multiply
    6,216,912.63x = 13,378,609.27 × 13,378,609.27
  4. Step 4: Simplify right side
    6,216,912.63x = 178,987,185,882,267.09
  5. Step 5: Solve for x
    x = 178,987,185,882,267.09/6,216,912.63
  6. Step 6: Final answer
    x = 28,790,365.32

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.