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Finding the Fourth Proportional to 18,668,411.20, 27,969,439.20 and 16,014,203.20

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Solution

The fourth proportional to 18,668,411.20, 27,969,439.20 and 16,014,203.20 is: 23,992,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668,411.20 : 27,969,439.20 = 16,014,203.20 : x
  2. Step 2: Convert to fraction form
    18,668,411.20/27,969,439.20 = 16,014,203.20/x
  3. Step 3: Cross multiply
    18,668,411.20x = 27,969,439.20 × 16,014,203.20
  4. Step 4: Simplify right side
    18,668,411.20x = 447,908,282,738,845.44
  5. Step 5: Solve for x
    x = 447,908,282,738,845.44/18,668,411.20
  6. Step 6: Final answer
    x = 23,992,844.27

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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.