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Finding the Fourth Proportional to 18,340.44, 27,494.85 and 7,800.81

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Solution

The fourth proportional to 18,340.44, 27,494.85 and 7,800.81 is: 11,694.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.44 : 27,494.85 = 7,800.81 : x
  2. Step 2: Convert to fraction form
    18,340.44/27,494.85 = 7,800.81/x
  3. Step 3: Cross multiply
    18,340.44x = 27,494.85 × 7,800.81
  4. Step 4: Simplify right side
    18,340.44x = 214,482,100.83
  5. Step 5: Solve for x
    x = 214,482,100.83/18,340.44
  6. Step 6: Final answer
    x = 11,694.49

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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.