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Finding the Fourth Proportional to 11,809.93, 17,717.52 and 3,914.93

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Solution

The fourth proportional to 11,809.93, 17,717.52 and 3,914.93 is: 5,873.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809.93 : 17,717.52 = 3,914.93 : x
  2. Step 2: Convert to fraction form
    11,809.93/17,717.52 = 3,914.93/x
  3. Step 3: Cross multiply
    11,809.93x = 17,717.52 × 3,914.93
  4. Step 4: Simplify right side
    11,809.93x = 69,362,850.57
  5. Step 5: Solve for x
    x = 69,362,850.57/11,809.93
  6. Step 6: Final answer
    x = 5,873.27

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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.