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Finding the Fourth Proportional to 11,339.88, 17,007.87 and 3,020.77

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Solution

The fourth proportional to 11,339.88, 17,007.87 and 3,020.77 is: 4,530.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.88 : 17,007.87 = 3,020.77 : x
  2. Step 2: Convert to fraction form
    11,339.88/17,007.87 = 3,020.77/x
  3. Step 3: Cross multiply
    11,339.88x = 17,007.87 × 3,020.77
  4. Step 4: Simplify right side
    11,339.88x = 51,376,863.46
  5. Step 5: Solve for x
    x = 51,376,863.46/11,339.88
  6. Step 6: Final answer
    x = 4,530.64

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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.