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Finding the Fourth Proportional to 8,987,687.56, 13,481,629.80 and 2,597,995.30

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Solution

The fourth proportional to 8,987,687.56, 13,481,629.80 and 2,597,995.30 is: 3,897,021.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987,687.56 : 13,481,629.80 = 2,597,995.30 : x
  2. Step 2: Convert to fraction form
    8,987,687.56/13,481,629.80 = 2,597,995.30/x
  3. Step 3: Cross multiply
    8,987,687.56x = 13,481,629.80 × 2,597,995.30
  4. Step 4: Simplify right side
    8,987,687.56x = 35,025,210,856,739.94
  5. Step 5: Solve for x
    x = 35,025,210,856,739.94/8,987,687.56
  6. Step 6: Final answer
    x = 3,897,021.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.