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Finding the Fourth Proportional to 6,396.98, 8,832.18 and 4,007.94

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Solution

The fourth proportional to 6,396.98, 8,832.18 and 4,007.94 is: 5,533.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,396.98 : 8,832.18 = 4,007.94 : x
  2. Step 2: Convert to fraction form
    6,396.98/8,832.18 = 4,007.94/x
  3. Step 3: Cross multiply
    6,396.98x = 8,832.18 × 4,007.94
  4. Step 4: Simplify right side
    6,396.98x = 35,398,847.51
  5. Step 5: Solve for x
    x = 35,398,847.51/6,396.98
  6. Step 6: Final answer
    x = 5,533.69

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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.