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Finding the Fourth Proportional to 7,241.25, 9,992.97 and 4,098.09

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Solution

The fourth proportional to 7,241.25, 9,992.97 and 4,098.09 is: 5,655.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,241.25 : 9,992.97 = 4,098.09 : x
  2. Step 2: Convert to fraction form
    7,241.25/9,992.97 = 4,098.09/x
  3. Step 3: Cross multiply
    7,241.25x = 9,992.97 × 4,098.09
  4. Step 4: Simplify right side
    7,241.25x = 40,952,090.43
  5. Step 5: Solve for x
    x = 40,952,090.43/7,241.25
  6. Step 6: Final answer
    x = 5,655.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.