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Finding the Fourth Proportional to 6,871,062.08, 9,479,939.31 and 3,969,394.22

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Solution

The fourth proportional to 6,871,062.08, 9,479,939.31 and 3,969,394.22 is: 5,476,535.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871,062.08 : 9,479,939.31 = 3,969,394.22 : x
  2. Step 2: Convert to fraction form
    6,871,062.08/9,479,939.31 = 3,969,394.22/x
  3. Step 3: Cross multiply
    6,871,062.08x = 9,479,939.31 × 3,969,394.22
  4. Step 4: Simplify right side
    6,871,062.08x = 37,629,616,255,665.09
  5. Step 5: Solve for x
    x = 37,629,616,255,665.09/6,871,062.08
  6. Step 6: Final answer
    x = 5,476,535.63

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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.