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Finding the Fourth Proportional to 19,043.84, 28,584.23 and 9,190.05

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Solution

The fourth proportional to 19,043.84, 28,584.23 and 9,190.05 is: 13,793.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,043.84 : 28,584.23 = 9,190.05 : x
  2. Step 2: Convert to fraction form
    19,043.84/28,584.23 = 9,190.05/x
  3. Step 3: Cross multiply
    19,043.84x = 28,584.23 × 9,190.05
  4. Step 4: Simplify right side
    19,043.84x = 262,690,456.96
  5. Step 5: Solve for x
    x = 262,690,456.96/19,043.84
  6. Step 6: Final answer
    x = 13,793.99

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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.