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Finding the Fourth Proportional to 27,699.67, 41,551.99 and 11,905.48

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Solution

The fourth proportional to 27,699.67, 41,551.99 and 11,905.48 is: 17,859.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,699.67 : 41,551.99 = 11,905.48 : x
  2. Step 2: Convert to fraction form
    27,699.67/41,551.99 = 11,905.48/x
  3. Step 3: Cross multiply
    27,699.67x = 41,551.99 × 11,905.48
  4. Step 4: Simplify right side
    27,699.67x = 494,696,408.08
  5. Step 5: Solve for x
    x = 494,696,408.08/27,699.67
  6. Step 6: Final answer
    x = 17,859.29

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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.