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Finding the Fourth Proportional to 19,194.50, 28,793.40 and 5,343.50

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Solution

The fourth proportional to 19,194.50, 28,793.40 and 5,343.50 is: 8,015.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,194.50 : 28,793.40 = 5,343.50 : x
  2. Step 2: Convert to fraction form
    19,194.50/28,793.40 = 5,343.50/x
  3. Step 3: Cross multiply
    19,194.50x = 28,793.40 × 5,343.50
  4. Step 4: Simplify right side
    19,194.50x = 153,857,532.90
  5. Step 5: Solve for x
    x = 153,857,532.90/19,194.50
  6. Step 6: Final answer
    x = 8,015.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.