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Finding the Fourth Proportional to 11,398.69, 17,093.93 and 4,375.09

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Solution

The fourth proportional to 11,398.69, 17,093.93 and 4,375.09 is: 6,561.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,398.69 : 17,093.93 = 4,375.09 : x
  2. Step 2: Convert to fraction form
    11,398.69/17,093.93 = 4,375.09/x
  3. Step 3: Cross multiply
    11,398.69x = 17,093.93 × 4,375.09
  4. Step 4: Simplify right side
    11,398.69x = 74,787,482.20
  5. Step 5: Solve for x
    x = 74,787,482.20/11,398.69
  6. Step 6: Final answer
    x = 6,561.06

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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.