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Finding the Fourth Proportional to 19,033.45, 28,560.50 and 7,941.11

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Solution

The fourth proportional to 19,033.45, 28,560.50 and 7,941.11 is: 11,915.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,033.45 : 28,560.50 = 7,941.11 : x
  2. Step 2: Convert to fraction form
    19,033.45/28,560.50 = 7,941.11/x
  3. Step 3: Cross multiply
    19,033.45x = 28,560.50 × 7,941.11
  4. Step 4: Simplify right side
    19,033.45x = 226,801,919.43
  5. Step 5: Solve for x
    x = 226,801,919.43/19,033.45
  6. Step 6: Final answer
    x = 11,915.97

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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.