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Finding the Fourth Proportional to 11,358.45, 17,044.97 and 5,511.87

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Solution

The fourth proportional to 11,358.45, 17,044.97 and 5,511.87 is: 8,271.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,358.45 : 17,044.97 = 5,511.87 : x
  2. Step 2: Convert to fraction form
    11,358.45/17,044.97 = 5,511.87/x
  3. Step 3: Cross multiply
    11,358.45x = 17,044.97 × 5,511.87
  4. Step 4: Simplify right side
    11,358.45x = 93,949,702.43
  5. Step 5: Solve for x
    x = 93,949,702.43/11,358.45
  6. Step 6: Final answer
    x = 8,271.35

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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.