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Finding the Fourth Proportional to 22,090.24, 33,128.34 and 7,296.40

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Solution

The fourth proportional to 22,090.24, 33,128.34 and 7,296.40 is: 10,942.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,090.24 : 33,128.34 = 7,296.40 : x
  2. Step 2: Convert to fraction form
    22,090.24/33,128.34 = 7,296.40/x
  3. Step 3: Cross multiply
    22,090.24x = 33,128.34 × 7,296.40
  4. Step 4: Simplify right side
    22,090.24x = 241,717,619.98
  5. Step 5: Solve for x
    x = 241,717,619.98/22,090.24
  6. Step 6: Final answer
    x = 10,942.28

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.