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Finding the Fourth Proportional to 19,217.44, 28,819.64 and 9,350.44

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Solution

The fourth proportional to 19,217.44, 28,819.64 and 9,350.44 is: 14,022.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.44 : 28,819.64 = 9,350.44 : x
  2. Step 2: Convert to fraction form
    19,217.44/28,819.64 = 9,350.44/x
  3. Step 3: Cross multiply
    19,217.44x = 28,819.64 × 9,350.44
  4. Step 4: Simplify right side
    19,217.44x = 269,476,314.64
  5. Step 5: Solve for x
    x = 269,476,314.64/19,217.44
  6. Step 6: Final answer
    x = 14,022.49

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1.5x scale

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.