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Finding the Fourth Proportional to 18,296.23, 27,425.08 and 10,388.83

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Solution

The fourth proportional to 18,296.23, 27,425.08 and 10,388.83 is: 15,572.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.23 : 27,425.08 = 10,388.83 : x
  2. Step 2: Convert to fraction form
    18,296.23/27,425.08 = 10,388.83/x
  3. Step 3: Cross multiply
    18,296.23x = 27,425.08 × 10,388.83
  4. Step 4: Simplify right side
    18,296.23x = 284,914,493.86
  5. Step 5: Solve for x
    x = 284,914,493.86/18,296.23
  6. Step 6: Final answer
    x = 15,572.31

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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.