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Finding the Fourth Proportional to 12,594.44, 18,891.72 and 3,829.28

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Solution

The fourth proportional to 12,594.44, 18,891.72 and 3,829.28 is: 5,743.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,594.44 : 18,891.72 = 3,829.28 : x
  2. Step 2: Convert to fraction form
    12,594.44/18,891.72 = 3,829.28/x
  3. Step 3: Cross multiply
    12,594.44x = 18,891.72 × 3,829.28
  4. Step 4: Simplify right side
    12,594.44x = 72,341,685.56
  5. Step 5: Solve for x
    x = 72,341,685.56/12,594.44
  6. Step 6: Final answer
    x = 5,743.94

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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.