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Finding the Fourth Proportional to 5,768.82, 8,660.09 and 4,855.74

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Solution

The fourth proportional to 5,768.82, 8,660.09 and 4,855.74 is: 7,289.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,768.82 : 8,660.09 = 4,855.74 : x
  2. Step 2: Convert to fraction form
    5,768.82/8,660.09 = 4,855.74/x
  3. Step 3: Cross multiply
    5,768.82x = 8,660.09 × 4,855.74
  4. Step 4: Simplify right side
    5,768.82x = 42,051,121.14
  5. Step 5: Solve for x
    x = 42,051,121.14/5,768.82
  6. Step 6: Final answer
    x = 7,289.38

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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.