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Finding the Fourth Proportional to 18,385.82, 27,573.59 and 6,538.08

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Solution

The fourth proportional to 18,385.82, 27,573.59 and 6,538.08 is: 9,805.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.82 : 27,573.59 = 6,538.08 : x
  2. Step 2: Convert to fraction form
    18,385.82/27,573.59 = 6,538.08/x
  3. Step 3: Cross multiply
    18,385.82x = 27,573.59 × 6,538.08
  4. Step 4: Simplify right side
    18,385.82x = 180,278,304.62
  5. Step 5: Solve for x
    x = 180,278,304.62/18,385.82
  6. Step 6: Final answer
    x = 9,805.29

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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.