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Finding the Fourth Proportional to 14,980,979.20, 22,471,468.80 and 13,469,324.80

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Solution

The fourth proportional to 14,980,979.20, 22,471,468.80 and 13,469,324.80 is: 20,203,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980,979.20 : 22,471,468.80 = 13,469,324.80 : x
  2. Step 2: Convert to fraction form
    14,980,979.20/22,471,468.80 = 13,469,324.80/x
  3. Step 3: Cross multiply
    14,980,979.20x = 22,471,468.80 × 13,469,324.80
  4. Step 4: Simplify right side
    14,980,979.20x = 302,675,512,000,266.25
  5. Step 5: Solve for x
    x = 302,675,512,000,266.25/14,980,979.20
  6. Step 6: Final answer
    x = 20,203,987.20

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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.