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Finding the Fourth Proportional to 17,879.67, 26,821.98 and 5,398.27

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Solution

The fourth proportional to 17,879.67, 26,821.98 and 5,398.27 is: 8,098.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.67 : 26,821.98 = 5,398.27 : x
  2. Step 2: Convert to fraction form
    17,879.67/26,821.98 = 5,398.27/x
  3. Step 3: Cross multiply
    17,879.67x = 26,821.98 × 5,398.27
  4. Step 4: Simplify right side
    17,879.67x = 144,792,222.92
  5. Step 5: Solve for x
    x = 144,792,222.92/17,879.67
  6. Step 6: Final answer
    x = 8,098.15

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1.5x scale

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.