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Finding the Fourth Proportional to 18,940.44, 26,124.30 and 16,418.04

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Solution

The fourth proportional to 18,940.44, 26,124.30 and 16,418.04 is: 22,645.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.44 : 26,124.30 = 16,418.04 : x
  2. Step 2: Convert to fraction form
    18,940.44/26,124.30 = 16,418.04/x
  3. Step 3: Cross multiply
    18,940.44x = 26,124.30 × 16,418.04
  4. Step 4: Simplify right side
    18,940.44x = 428,909,802.37
  5. Step 5: Solve for x
    x = 428,909,802.37/18,940.44
  6. Step 6: Final answer
    x = 22,645.19

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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.