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Finding the Fourth Proportional to 18,822.82, 28,236.83 and 6,346.41

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Solution

The fourth proportional to 18,822.82, 28,236.83 and 6,346.41 is: 9,520.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,822.82 : 28,236.83 = 6,346.41 : x
  2. Step 2: Convert to fraction form
    18,822.82/28,236.83 = 6,346.41/x
  3. Step 3: Cross multiply
    18,822.82x = 28,236.83 × 6,346.41
  4. Step 4: Simplify right side
    18,822.82x = 179,202,575.04
  5. Step 5: Solve for x
    x = 179,202,575.04/18,822.82
  6. Step 6: Final answer
    x = 9,520.49

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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.