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Finding the Third Proportional to 4,597,866 and 9,991,620

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Solution

The third proportional to 4,597,866 and 9,991,620 is: 21,712,783.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,597,866 : 9,991,620 = 9,991,620 : x
  2. Step 2: Convert to fraction form
    4,597,866/9,991,620 = 9,991,620/x
  3. Step 3: Cross multiply
    4,597,866x = 9,991,620 × 9,991,620
  4. Step 4: Simplify right side
    4,597,866x = 99,832,470,224,400
  5. Step 5: Solve for x
    x = 99,832,470,224,400/4,597,866
  6. Step 6: Final answer
    x = 21,712,783.76

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.