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Finding the Third Proportional to 4,138,431.75 and 9,093,399.19

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Solution

The third proportional to 4,138,431.75 and 9,093,399.19 is: 19,980,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138,431.75 : 9,093,399.19 = 9,093,399.19 : x
  2. Step 2: Convert to fraction form
    4,138,431.75/9,093,399.19 = 9,093,399.19/x
  3. Step 3: Cross multiply
    4,138,431.75x = 9,093,399.19 × 9,093,399.19
  4. Step 4: Simplify right side
    4,138,431.75x = 82,689,908,783,225.66
  5. Step 5: Solve for x
    x = 82,689,908,783,225.66/4,138,431.75
  6. Step 6: Final answer
    x = 19,980,976.80

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.