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Finding the Fourth Proportional to 11,970.82, 17,959.14 and 3,650.99

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Solution

The fourth proportional to 11,970.82, 17,959.14 and 3,650.99 is: 5,477.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970.82 : 17,959.14 = 3,650.99 : x
  2. Step 2: Convert to fraction form
    11,970.82/17,959.14 = 3,650.99/x
  3. Step 3: Cross multiply
    11,970.82x = 17,959.14 × 3,650.99
  4. Step 4: Simplify right side
    11,970.82x = 65,568,550.75
  5. Step 5: Solve for x
    x = 65,568,550.75/11,970.82
  6. Step 6: Final answer
    x = 5,477.36

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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.