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Finding the Fourth Proportional to 8,441,701.76, 12,663,813.78 and 2,684,623.20

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Solution

The fourth proportional to 8,441,701.76, 12,663,813.78 and 2,684,623.20 is: 4,027,335.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,441,701.76 : 12,663,813.78 = 2,684,623.20 : x
  2. Step 2: Convert to fraction form
    8,441,701.76/12,663,813.78 = 2,684,623.20/x
  3. Step 3: Cross multiply
    8,441,701.76x = 12,663,813.78 × 2,684,623.20
  4. Step 4: Simplify right side
    8,441,701.76x = 33,997,568,274,267.70
  5. Step 5: Solve for x
    x = 33,997,568,274,267.70/8,441,701.76
  6. Step 6: Final answer
    x = 4,027,335.87

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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.