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Finding the Fourth Proportional to 18,161.62, 27,243.80 and 7,063.54

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Solution

The fourth proportional to 18,161.62, 27,243.80 and 7,063.54 is: 10,595.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.62 : 27,243.80 = 7,063.54 : x
  2. Step 2: Convert to fraction form
    18,161.62/27,243.80 = 7,063.54/x
  3. Step 3: Cross multiply
    18,161.62x = 27,243.80 × 7,063.54
  4. Step 4: Simplify right side
    18,161.62x = 192,437,671.05
  5. Step 5: Solve for x
    x = 192,437,671.05/18,161.62
  6. Step 6: Final answer
    x = 10,595.84

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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.