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Finding the Fourth Proportional to 13,956,103.20, 20,935,537.20 and 4,856,800.80

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Solution

The fourth proportional to 13,956,103.20, 20,935,537.20 and 4,856,800.80 is: 7,285,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956,103.20 : 20,935,537.20 = 4,856,800.80 : x
  2. Step 2: Convert to fraction form
    13,956,103.20/20,935,537.20 = 4,856,800.80/x
  3. Step 3: Cross multiply
    13,956,103.20x = 20,935,537.20 × 4,856,800.80
  4. Step 4: Simplify right side
    13,956,103.20x = 101,679,733,821,389.75
  5. Step 5: Solve for x
    x = 101,679,733,821,389.75/13,956,103.20
  6. Step 6: Final answer
    x = 7,285,682.28

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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.