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Finding the Fourth Proportional to 19,910.75, 29,866.13 and 6,059.75

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Solution

The fourth proportional to 19,910.75, 29,866.13 and 6,059.75 is: 9,089.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,910.75 : 29,866.13 = 6,059.75 : x
  2. Step 2: Convert to fraction form
    19,910.75/29,866.13 = 6,059.75/x
  3. Step 3: Cross multiply
    19,910.75x = 29,866.13 × 6,059.75
  4. Step 4: Simplify right side
    19,910.75x = 180,981,281.27
  5. Step 5: Solve for x
    x = 180,981,281.27/19,910.75
  6. Step 6: Final answer
    x = 9,089.63

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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.