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Finding the Fourth Proportional to 13,481.47, 20,232.78 and 9,350.47

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Solution

The fourth proportional to 13,481.47, 20,232.78 and 9,350.47 is: 14,033.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.47 : 20,232.78 = 9,350.47 : x
  2. Step 2: Convert to fraction form
    13,481.47/20,232.78 = 9,350.47/x
  3. Step 3: Cross multiply
    13,481.47x = 20,232.78 × 9,350.47
  4. Step 4: Simplify right side
    13,481.47x = 189,186,002.41
  5. Step 5: Solve for x
    x = 189,186,002.41/13,481.47
  6. Step 6: Final answer
    x = 14,033.04

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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.