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Finding the Fourth Proportional to 5,728.91, 8,590.86 and 2,029.91

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Solution

The fourth proportional to 5,728.91, 8,590.86 and 2,029.91 is: 3,043.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.91 : 8,590.86 = 2,029.91 : x
  2. Step 2: Convert to fraction form
    5,728.91/8,590.86 = 2,029.91/x
  3. Step 3: Cross multiply
    5,728.91x = 8,590.86 × 2,029.91
  4. Step 4: Simplify right side
    5,728.91x = 17,438,629.67
  5. Step 5: Solve for x
    x = 17,438,629.67/5,728.91
  6. Step 6: Final answer
    x = 3,043.97

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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.