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Finding the Fourth Proportional to 45,483.81, 68,241.21 and 27,749.97

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Solution

The fourth proportional to 45,483.81, 68,241.21 and 27,749.97 is: 41,634.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,483.81 : 68,241.21 = 27,749.97 : x
  2. Step 2: Convert to fraction form
    45,483.81/68,241.21 = 27,749.97/x
  3. Step 3: Cross multiply
    45,483.81x = 68,241.21 × 27,749.97
  4. Step 4: Simplify right side
    45,483.81x = 1,893,691,530.26
  5. Step 5: Solve for x
    x = 1,893,691,530.26/45,483.81
  6. Step 6: Final answer
    x = 41,634.41

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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.