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Finding the Fourth Proportional to 22,194.71, 30,629.60 and 12,763.27

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Solution

The fourth proportional to 22,194.71, 30,629.60 and 12,763.27 is: 17,613.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,194.71 : 30,629.60 = 12,763.27 : x
  2. Step 2: Convert to fraction form
    22,194.71/30,629.60 = 12,763.27/x
  3. Step 3: Cross multiply
    22,194.71x = 30,629.60 × 12,763.27
  4. Step 4: Simplify right side
    22,194.71x = 390,933,877.12
  5. Step 5: Solve for x
    x = 390,933,877.12/22,194.71
  6. Step 6: Final answer
    x = 17,613.83

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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.