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Finding the Fourth Proportional to 8,778.36, 12,124.53 and 5,940.81

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Solution

The fourth proportional to 8,778.36, 12,124.53 and 5,940.81 is: 8,205.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.36 : 12,124.53 = 5,940.81 : x
  2. Step 2: Convert to fraction form
    8,778.36/12,124.53 = 5,940.81/x
  3. Step 3: Cross multiply
    8,778.36x = 12,124.53 × 5,940.81
  4. Step 4: Simplify right side
    8,778.36x = 72,029,574.54
  5. Step 5: Solve for x
    x = 72,029,574.54/8,778.36
  6. Step 6: Final answer
    x = 8,205.36

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