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Finding the Fourth Proportional to 14,790.48, 22,188.42 and 8,940.12

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Solution

The fourth proportional to 14,790.48, 22,188.42 and 8,940.12 is: 13,411.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,790.48 : 22,188.42 = 8,940.12 : x
  2. Step 2: Convert to fraction form
    14,790.48/22,188.42 = 8,940.12/x
  3. Step 3: Cross multiply
    14,790.48x = 22,188.42 × 8,940.12
  4. Step 4: Simplify right side
    14,790.48x = 198,367,137.41
  5. Step 5: Solve for x
    x = 198,367,137.41/14,790.48
  6. Step 6: Final answer
    x = 13,411.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.