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Finding the Fourth Proportional to 11,808.93, 17,716.02 and 3,913.93

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Solution

The fourth proportional to 11,808.93, 17,716.02 and 3,913.93 is: 5,871.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,808.93 : 17,716.02 = 3,913.93 : x
  2. Step 2: Convert to fraction form
    11,808.93/17,716.02 = 3,913.93/x
  3. Step 3: Cross multiply
    11,808.93x = 17,716.02 × 3,913.93
  4. Step 4: Simplify right side
    11,808.93x = 69,339,262.16
  5. Step 5: Solve for x
    x = 69,339,262.16/11,808.93
  6. Step 6: Final answer
    x = 5,871.77

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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.