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Finding the Fourth Proportional to 11,876.75, 17,813.08 and 3,554.53

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Solution

The fourth proportional to 11,876.75, 17,813.08 and 3,554.53 is: 5,331.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,876.75 : 17,813.08 = 3,554.53 : x
  2. Step 2: Convert to fraction form
    11,876.75/17,813.08 = 3,554.53/x
  3. Step 3: Cross multiply
    11,876.75x = 17,813.08 × 3,554.53
  4. Step 4: Simplify right side
    11,876.75x = 63,317,167.37
  5. Step 5: Solve for x
    x = 63,317,167.37/11,876.75
  6. Step 6: Final answer
    x = 5,331.19

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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.