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Finding the Third Proportional to 2,155,739.06 and 4,694,203.13

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Solution

The third proportional to 2,155,739.06 and 4,694,203.13 is: 10,221,804.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,739.06 : 4,694,203.13 = 4,694,203.13 : x
  2. Step 2: Convert to fraction form
    2,155,739.06/4,694,203.13 = 4,694,203.13/x
  3. Step 3: Cross multiply
    2,155,739.06x = 4,694,203.13 × 4,694,203.13
  4. Step 4: Simplify right side
    2,155,739.06x = 22,035,542,978,759.77
  5. Step 5: Solve for x
    x = 22,035,542,978,759.77/2,155,739.06
  6. Step 6: Final answer
    x = 10,221,804.37

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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.