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Finding the Fourth Proportional to 6,624.99, 9,141.44 and 3,791.71

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Solution

The fourth proportional to 6,624.99, 9,141.44 and 3,791.71 is: 5,231.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.99 : 9,141.44 = 3,791.71 : x
  2. Step 2: Convert to fraction form
    6,624.99/9,141.44 = 3,791.71/x
  3. Step 3: Cross multiply
    6,624.99x = 9,141.44 × 3,791.71
  4. Step 4: Simplify right side
    6,624.99x = 34,661,643.76
  5. Step 5: Solve for x
    x = 34,661,643.76/6,624.99
  6. Step 6: Final answer
    x = 5,231.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.