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Finding the Third Proportional to 4,206,140 and 9,150,394

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Solution

The third proportional to 4,206,140 and 9,150,394 is: 19,906,543.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,206,140 : 9,150,394 = 9,150,394 : x
  2. Step 2: Convert to fraction form
    4,206,140/9,150,394 = 9,150,394/x
  3. Step 3: Cross multiply
    4,206,140x = 9,150,394 × 9,150,394
  4. Step 4: Simplify right side
    4,206,140x = 83,729,710,355,236
  5. Step 5: Solve for x
    x = 83,729,710,355,236/4,206,140
  6. Step 6: Final answer
    x = 19,906,543.85

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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.