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Finding the Third Proportional to 1,892,809.13 and 4,128,198.75

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Solution

The third proportional to 1,892,809.13 and 4,128,198.75 is: 9,003,562.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892,809.13 : 4,128,198.75 = 4,128,198.75 : x
  2. Step 2: Convert to fraction form
    1,892,809.13/4,128,198.75 = 4,128,198.75/x
  3. Step 3: Cross multiply
    1,892,809.13x = 4,128,198.75 × 4,128,198.75
  4. Step 4: Simplify right side
    1,892,809.13x = 17,042,024,919,501.56
  5. Step 5: Solve for x
    x = 17,042,024,919,501.56/1,892,809.13
  6. Step 6: Final answer
    x = 9,003,562.32

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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.