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Finding the Fourth Proportional to 11,481.84, 17,224.48 and 4,908

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Solution

The fourth proportional to 11,481.84, 17,224.48 and 4,908 is: 7,362.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.84 : 17,224.48 = 4,908 : x
  2. Step 2: Convert to fraction form
    11,481.84/17,224.48 = 4,908/x
  3. Step 3: Cross multiply
    11,481.84x = 17,224.48 × 4,908
  4. Step 4: Simplify right side
    11,481.84x = 84,537,747.84
  5. Step 5: Solve for x
    x = 84,537,747.84/11,481.84
  6. Step 6: Final answer
    x = 7,362.74

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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.