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Finding the Fourth Proportional to 13,597,584.20, 20,349,137.10 and 12,463,843.40

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Solution

The fourth proportional to 13,597,584.20, 20,349,137.10 and 12,463,843.40 is: 18,652,464.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,597,584.20 : 20,349,137.10 = 12,463,843.40 : x
  2. Step 2: Convert to fraction form
    13,597,584.20/20,349,137.10 = 12,463,843.40/x
  3. Step 3: Cross multiply
    13,597,584.20x = 20,349,137.10 × 12,463,843.40
  4. Step 4: Simplify right side
    13,597,584.20x = 253,628,458,139,530.16
  5. Step 5: Solve for x
    x = 253,628,458,139,530.16/13,597,584.20
  6. Step 6: Final answer
    x = 18,652,464.61

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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.