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Finding the Fourth Proportional to 11,808.13, 17,715.11 and 3,488.11

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Solution

The fourth proportional to 11,808.13, 17,715.11 and 3,488.11 is: 5,233.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,808.13 : 17,715.11 = 3,488.11 : x
  2. Step 2: Convert to fraction form
    11,808.13/17,715.11 = 3,488.11/x
  3. Step 3: Cross multiply
    11,808.13x = 17,715.11 × 3,488.11
  4. Step 4: Simplify right side
    11,808.13x = 61,792,290.26
  5. Step 5: Solve for x
    x = 61,792,290.26/11,808.13
  6. Step 6: Final answer
    x = 5,233.03

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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.