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Finding the Fourth Proportional to 6,622.88, 9,936.75 and 6,231.65

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Solution

The fourth proportional to 6,622.88, 9,936.75 and 6,231.65 is: 9,349.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.88 : 9,936.75 = 6,231.65 : x
  2. Step 2: Convert to fraction form
    6,622.88/9,936.75 = 6,231.65/x
  3. Step 3: Cross multiply
    6,622.88x = 9,936.75 × 6,231.65
  4. Step 4: Simplify right side
    6,622.88x = 61,922,316.98
  5. Step 5: Solve for x
    x = 61,922,316.98/6,622.88
  6. Step 6: Final answer
    x = 9,349.76

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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.