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Finding the Fourth Proportional to 18,857,128.80, 28,243,702.80 and 16,337,704.80

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Solution

The fourth proportional to 18,857,128.80, 28,243,702.80 and 16,337,704.80 is: 24,470,176.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857,128.80 : 28,243,702.80 = 16,337,704.80 : x
  2. Step 2: Convert to fraction form
    18,857,128.80/28,243,702.80 = 16,337,704.80/x
  3. Step 3: Cross multiply
    18,857,128.80x = 28,243,702.80 × 16,337,704.80
  4. Step 4: Simplify right side
    18,857,128.80x = 461,437,278,805,333.50
  5. Step 5: Solve for x
    x = 461,437,278,805,333.50/18,857,128.80
  6. Step 6: Final answer
    x = 24,470,176.97

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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.