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Finding the Fourth Proportional to 18,530.56, 27,796.04 and 7,287.04

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Solution

The fourth proportional to 18,530.56, 27,796.04 and 7,287.04 is: 10,930.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,530.56 : 27,796.04 = 7,287.04 : x
  2. Step 2: Convert to fraction form
    18,530.56/27,796.04 = 7,287.04/x
  3. Step 3: Cross multiply
    18,530.56x = 27,796.04 × 7,287.04
  4. Step 4: Simplify right side
    18,530.56x = 202,550,855.32
  5. Step 5: Solve for x
    x = 202,550,855.32/18,530.56
  6. Step 6: Final answer
    x = 10,930.64

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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.