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Finding the Third Proportional to 1,919,189.53 and 4,135,810.22

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Solution

The third proportional to 1,919,189.53 and 4,135,810.22 is: 8,912,577.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,189.53 : 4,135,810.22 = 4,135,810.22 : x
  2. Step 2: Convert to fraction form
    1,919,189.53/4,135,810.22 = 4,135,810.22/x
  3. Step 3: Cross multiply
    1,919,189.53x = 4,135,810.22 × 4,135,810.22
  4. Step 4: Simplify right side
    1,919,189.53x = 17,104,926,165,516.92
  5. Step 5: Solve for x
    x = 17,104,926,165,516.92/1,919,189.53
  6. Step 6: Final answer
    x = 8,912,577.88

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.