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Finding the Fourth Proportional to 22,378.67, 33,568.46 and 17,915.61

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Solution

The fourth proportional to 22,378.67, 33,568.46 and 17,915.61 is: 26,873.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378.67 : 33,568.46 = 17,915.61 : x
  2. Step 2: Convert to fraction form
    22,378.67/33,568.46 = 17,915.61/x
  3. Step 3: Cross multiply
    22,378.67x = 33,568.46 × 17,915.61
  4. Step 4: Simplify right side
    22,378.67x = 601,399,437.66
  5. Step 5: Solve for x
    x = 601,399,437.66/22,378.67
  6. Step 6: Final answer
    x = 26,873.78

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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.