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Finding the Fourth Proportional to 18,442,244.80, 27,644,704.80 and 10,865,310.40

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Solution

The fourth proportional to 18,442,244.80, 27,644,704.80 and 10,865,310.40 is: 16,286,970.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442,244.80 : 27,644,704.80 = 10,865,310.40 : x
  2. Step 2: Convert to fraction form
    18,442,244.80/27,644,704.80 = 10,865,310.40/x
  3. Step 3: Cross multiply
    18,442,244.80x = 27,644,704.80 × 10,865,310.40
  4. Step 4: Simplify right side
    18,442,244.80x = 300,368,298,568,369.94
  5. Step 5: Solve for x
    x = 300,368,298,568,369.94/18,442,244.80
  6. Step 6: Final answer
    x = 16,286,970.58

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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.