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Finding the Fourth Proportional to 18,899,221.52, 28,325,800.92 and 9,796,300.40

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Solution

The fourth proportional to 18,899,221.52, 28,325,800.92 and 9,796,300.40 is: 14,682,512.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899,221.52 : 28,325,800.92 = 9,796,300.40 : x
  2. Step 2: Convert to fraction form
    18,899,221.52/28,325,800.92 = 9,796,300.40/x
  3. Step 3: Cross multiply
    18,899,221.52x = 28,325,800.92 × 9,796,300.40
  4. Step 4: Simplify right side
    18,899,221.52x = 277,488,054,882,916.41
  5. Step 5: Solve for x
    x = 277,488,054,882,916.41/18,899,221.52
  6. Step 6: Final answer
    x = 14,682,512.43

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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.