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Finding the Fourth Proportional to 11,394.88, 17,090.48 and 3,601.92

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Solution

The fourth proportional to 11,394.88, 17,090.48 and 3,601.92 is: 5,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.88 : 17,090.48 = 3,601.92 : x
  2. Step 2: Convert to fraction form
    11,394.88/17,090.48 = 3,601.92/x
  3. Step 3: Cross multiply
    11,394.88x = 17,090.48 × 3,601.92
  4. Step 4: Simplify right side
    11,394.88x = 61,558,541.72
  5. Step 5: Solve for x
    x = 61,558,541.72/11,394.88
  6. Step 6: Final answer
    x = 5,402.30

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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.