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Finding the Fourth Proportional to 16,625,905.10, 24,957,520.05 and 12,856,100.30

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Solution

The fourth proportional to 16,625,905.10, 24,957,520.05 and 12,856,100.30 is: 19,298,581.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,625,905.10 : 24,957,520.05 = 12,856,100.30 : x
  2. Step 2: Convert to fraction form
    16,625,905.10/24,957,520.05 = 12,856,100.30/x
  3. Step 3: Cross multiply
    16,625,905.10x = 24,957,520.05 × 12,856,100.30
  4. Step 4: Simplify right side
    16,625,905.10x = 320,856,381,002,061.06
  5. Step 5: Solve for x
    x = 320,856,381,002,061.06/16,625,905.10
  6. Step 6: Final answer
    x = 19,298,581.28

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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.