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Finding the Fourth Proportional to 19,027.16, 28,540.82 and 5,879.16

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Solution

The fourth proportional to 19,027.16, 28,540.82 and 5,879.16 is: 8,818.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,027.16 : 28,540.82 = 5,879.16 : x
  2. Step 2: Convert to fraction form
    19,027.16/28,540.82 = 5,879.16/x
  3. Step 3: Cross multiply
    19,027.16x = 28,540.82 × 5,879.16
  4. Step 4: Simplify right side
    19,027.16x = 167,796,047.31
  5. Step 5: Solve for x
    x = 167,796,047.31/19,027.16
  6. Step 6: Final answer
    x = 8,818.76

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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.