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Finding the Fourth Proportional to 11,379.48, 17,046.48 and 9,043.44

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Solution

The fourth proportional to 11,379.48, 17,046.48 and 9,043.44 is: 13,547.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.48 : 17,046.48 = 9,043.44 : x
  2. Step 2: Convert to fraction form
    11,379.48/17,046.48 = 9,043.44/x
  3. Step 3: Cross multiply
    11,379.48x = 17,046.48 × 9,043.44
  4. Step 4: Simplify right side
    11,379.48x = 154,158,819.09
  5. Step 5: Solve for x
    x = 154,158,819.09/11,379.48
  6. Step 6: Final answer
    x = 13,547.09

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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.