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Finding the Third Proportional to 4,991,241.50 and 10,218,908

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Solution

The third proportional to 4,991,241.50 and 10,218,908 is: 20,921,864.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991,241.50 : 10,218,908 = 10,218,908 : x
  2. Step 2: Convert to fraction form
    4,991,241.50/10,218,908 = 10,218,908/x
  3. Step 3: Cross multiply
    4,991,241.50x = 10,218,908 × 10,218,908
  4. Step 4: Simplify right side
    4,991,241.50x = 104,426,080,712,464
  5. Step 5: Solve for x
    x = 104,426,080,712,464/4,991,241.50
  6. Step 6: Final answer
    x = 20,921,864.97

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.