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Finding the Fourth Proportional to 18,296.39, 27,453.80 and 7,211.04

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Solution

The fourth proportional to 18,296.39, 27,453.80 and 7,211.04 is: 10,820.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.39 : 27,453.80 = 7,211.04 : x
  2. Step 2: Convert to fraction form
    18,296.39/27,453.80 = 7,211.04/x
  3. Step 3: Cross multiply
    18,296.39x = 27,453.80 × 7,211.04
  4. Step 4: Simplify right side
    18,296.39x = 197,970,365.03
  5. Step 5: Solve for x
    x = 197,970,365.03/18,296.39
  6. Step 6: Final answer
    x = 10,820.19

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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.