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Finding the Fourth Proportional to 5,879.99, 8,814.42 and 2,179.71

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Solution

The fourth proportional to 5,879.99, 8,814.42 and 2,179.71 is: 3,267.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.99 : 8,814.42 = 2,179.71 : x
  2. Step 2: Convert to fraction form
    5,879.99/8,814.42 = 2,179.71/x
  3. Step 3: Cross multiply
    5,879.99x = 8,814.42 × 2,179.71
  4. Step 4: Simplify right side
    5,879.99x = 19,212,879.42
  5. Step 5: Solve for x
    x = 19,212,879.42/5,879.99
  6. Step 6: Final answer
    x = 3,267.50

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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.