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Finding the Fourth Proportional to 11,379.61, 17,069.42 and 3,589.03

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Solution

The fourth proportional to 11,379.61, 17,069.42 and 3,589.03 is: 5,383.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.61 : 17,069.42 = 3,589.03 : x
  2. Step 2: Convert to fraction form
    11,379.61/17,069.42 = 3,589.03/x
  3. Step 3: Cross multiply
    11,379.61x = 17,069.42 × 3,589.03
  4. Step 4: Simplify right side
    11,379.61x = 61,262,642.52
  5. Step 5: Solve for x
    x = 61,262,642.52/11,379.61
  6. Step 6: Final answer
    x = 5,383.55

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Similar ratio
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1.5x scale

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.