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Finding the Fourth Proportional to 18,528.62, 27,772.99 and 8,003.59

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Solution

The fourth proportional to 18,528.62, 27,772.99 and 8,003.59 is: 11,996.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.62 : 27,772.99 = 8,003.59 : x
  2. Step 2: Convert to fraction form
    18,528.62/27,772.99 = 8,003.59/x
  3. Step 3: Cross multiply
    18,528.62x = 27,772.99 × 8,003.59
  4. Step 4: Simplify right side
    18,528.62x = 222,283,535.59
  5. Step 5: Solve for x
    x = 222,283,535.59/18,528.62
  6. Step 6: Final answer
    x = 11,996.77

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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.