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Finding the Fourth Proportional to 5,728,952.88, 7,905,797.10 and 3,150,633.60

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Solution

The fourth proportional to 5,728,952.88, 7,905,797.10 and 3,150,633.60 is: 4,347,787.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728,952.88 : 7,905,797.10 = 3,150,633.60 : x
  2. Step 2: Convert to fraction form
    5,728,952.88/7,905,797.10 = 3,150,633.60/x
  3. Step 3: Cross multiply
    5,728,952.88x = 7,905,797.10 × 3,150,633.60
  4. Step 4: Simplify right side
    5,728,952.88x = 24,908,269,978,042.56
  5. Step 5: Solve for x
    x = 24,908,269,978,042.56/5,728,952.88
  6. Step 6: Final answer
    x = 4,347,787.55

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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.