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Finding the Fourth Proportional to 18,194.26, 27,290.12 and 7,098.88

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Solution

The fourth proportional to 18,194.26, 27,290.12 and 7,098.88 is: 10,647.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,194.26 : 27,290.12 = 7,098.88 : x
  2. Step 2: Convert to fraction form
    18,194.26/27,290.12 = 7,098.88/x
  3. Step 3: Cross multiply
    18,194.26x = 27,290.12 × 7,098.88
  4. Step 4: Simplify right side
    18,194.26x = 193,729,287.07
  5. Step 5: Solve for x
    x = 193,729,287.07/18,194.26
  6. Step 6: Final answer
    x = 10,647.82

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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.