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Finding the Fourth Proportional to 6,368,143.92, 8,786,871.06 and 3,755,467.64

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Solution

The fourth proportional to 6,368,143.92, 8,786,871.06 and 3,755,467.64 is: 5,181,856.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368,143.92 : 8,786,871.06 = 3,755,467.64 : x
  2. Step 2: Convert to fraction form
    6,368,143.92/8,786,871.06 = 3,755,467.64/x
  3. Step 3: Cross multiply
    6,368,143.92x = 8,786,871.06 × 3,755,467.64
  4. Step 4: Simplify right side
    6,368,143.92x = 32,998,809,922,682.50
  5. Step 5: Solve for x
    x = 32,998,809,922,682.50/6,368,143.92
  6. Step 6: Final answer
    x = 5,181,856.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.