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Finding the Fourth Proportional to 7,230,662.24, 9,979,198.80 and 4,174,871.36

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Solution

The fourth proportional to 7,230,662.24, 9,979,198.80 and 4,174,871.36 is: 5,761,833.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230,662.24 : 9,979,198.80 = 4,174,871.36 : x
  2. Step 2: Convert to fraction form
    7,230,662.24/9,979,198.80 = 4,174,871.36/x
  3. Step 3: Cross multiply
    7,230,662.24x = 9,979,198.80 × 4,174,871.36
  4. Step 4: Simplify right side
    7,230,662.24x = 41,661,871,265,866.37
  5. Step 5: Solve for x
    x = 41,661,871,265,866.37/7,230,662.24
  6. Step 6: Final answer
    x = 5,761,833.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.