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Finding the Fourth Proportional to 9,379.13, 14,069.16 and 2,805.37

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Solution

The fourth proportional to 9,379.13, 14,069.16 and 2,805.37 is: 4,208.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.13 : 14,069.16 = 2,805.37 : x
  2. Step 2: Convert to fraction form
    9,379.13/14,069.16 = 2,805.37/x
  3. Step 3: Cross multiply
    9,379.13x = 14,069.16 × 2,805.37
  4. Step 4: Simplify right side
    9,379.13x = 39,469,164.22
  5. Step 5: Solve for x
    x = 39,469,164.22/9,379.13
  6. Step 6: Final answer
    x = 4,208.19

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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.