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Finding the Fourth Proportional to 19,026.99, 28,540.49 and 5,879.07

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Solution

The fourth proportional to 19,026.99, 28,540.49 and 5,879.07 is: 8,818.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,026.99 : 28,540.49 = 5,879.07 : x
  2. Step 2: Convert to fraction form
    19,026.99/28,540.49 = 5,879.07/x
  3. Step 3: Cross multiply
    19,026.99x = 28,540.49 × 5,879.07
  4. Step 4: Simplify right side
    19,026.99x = 167,791,509.15
  5. Step 5: Solve for x
    x = 167,791,509.15/19,026.99
  6. Step 6: Final answer
    x = 8,818.61

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.