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Finding the Third Proportional to 4,394,620 and 9,640,153

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Solution

The third proportional to 4,394,620 and 9,640,153 is: 21,146,890.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,394,620 : 9,640,153 = 9,640,153 : x
  2. Step 2: Convert to fraction form
    4,394,620/9,640,153 = 9,640,153/x
  3. Step 3: Cross multiply
    4,394,620x = 9,640,153 × 9,640,153
  4. Step 4: Simplify right side
    4,394,620x = 92,932,549,863,409
  5. Step 5: Solve for x
    x = 92,932,549,863,409/4,394,620
  6. Step 6: Final answer
    x = 21,146,890.94

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.