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Finding the Fourth Proportional to 22,266.55, 30,728.18 and 12,194.81

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Solution

The fourth proportional to 22,266.55, 30,728.18 and 12,194.81 is: 16,829.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,266.55 : 30,728.18 = 12,194.81 : x
  2. Step 2: Convert to fraction form
    22,266.55/30,728.18 = 12,194.81/x
  3. Step 3: Cross multiply
    22,266.55x = 30,728.18 × 12,194.81
  4. Step 4: Simplify right side
    22,266.55x = 374,724,193.59
  5. Step 5: Solve for x
    x = 374,724,193.59/22,266.55
  6. Step 6: Final answer
    x = 16,829.02

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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.