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Finding the Fourth Proportional to 6,635.55, 9,930.24 and 5,451.33

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Solution

The fourth proportional to 6,635.55, 9,930.24 and 5,451.33 is: 8,158.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,635.55 : 9,930.24 = 5,451.33 : x
  2. Step 2: Convert to fraction form
    6,635.55/9,930.24 = 5,451.33/x
  3. Step 3: Cross multiply
    6,635.55x = 9,930.24 × 5,451.33
  4. Step 4: Simplify right side
    6,635.55x = 54,133,015.22
  5. Step 5: Solve for x
    x = 54,133,015.22/6,635.55
  6. Step 6: Final answer
    x = 8,158.03

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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.