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Finding the Fourth Proportional to 11,391.78, 17,091.06 and 5,849.04

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Solution

The fourth proportional to 11,391.78, 17,091.06 and 5,849.04 is: 8,775.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391.78 : 17,091.06 = 5,849.04 : x
  2. Step 2: Convert to fraction form
    11,391.78/17,091.06 = 5,849.04/x
  3. Step 3: Cross multiply
    11,391.78x = 17,091.06 × 5,849.04
  4. Step 4: Simplify right side
    11,391.78x = 99,966,293.58
  5. Step 5: Solve for x
    x = 99,966,293.58/11,391.78
  6. Step 6: Final answer
    x = 8,775.30

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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.