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Finding the Fourth Proportional to 16,616,906.92, 24,904,393.78 and 8,421,608.30

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Solution

The fourth proportional to 16,616,906.92, 24,904,393.78 and 8,421,608.30 is: 12,621,786.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,616,906.92 : 24,904,393.78 = 8,421,608.30 : x
  2. Step 2: Convert to fraction form
    16,616,906.92/24,904,393.78 = 8,421,608.30/x
  3. Step 3: Cross multiply
    16,616,906.92x = 24,904,393.78 × 8,421,608.30
  4. Step 4: Simplify right side
    16,616,906.92x = 209,735,049,280,692.03
  5. Step 5: Solve for x
    x = 209,735,049,280,692.03/16,616,906.92
  6. Step 6: Final answer
    x = 12,621,786.37

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1.5x scale

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.