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Finding the Fourth Proportional to 22,357.97, 30,854.58 and 12,286.69

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Solution

The fourth proportional to 22,357.97, 30,854.58 and 12,286.69 is: 16,955.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,357.97 : 30,854.58 = 12,286.69 : x
  2. Step 2: Convert to fraction form
    22,357.97/30,854.58 = 12,286.69/x
  3. Step 3: Cross multiply
    22,357.97x = 30,854.58 × 12,286.69
  4. Step 4: Simplify right side
    22,357.97x = 379,100,622.72
  5. Step 5: Solve for x
    x = 379,100,622.72/22,357.97
  6. Step 6: Final answer
    x = 16,955.95

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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.