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Finding the Fourth Proportional to 18,833.76, 28,230.92 and 6,349.48

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Solution

The fourth proportional to 18,833.76, 28,230.92 and 6,349.48 is: 9,517.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.76 : 28,230.92 = 6,349.48 : x
  2. Step 2: Convert to fraction form
    18,833.76/28,230.92 = 6,349.48/x
  3. Step 3: Cross multiply
    18,833.76x = 28,230.92 × 6,349.48
  4. Step 4: Simplify right side
    18,833.76x = 179,251,661.92
  5. Step 5: Solve for x
    x = 179,251,661.92/18,833.76
  6. Step 6: Final answer
    x = 9,517.57

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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.