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Finding the Fourth Proportional to 5,865.99, 8,786.74 and 3,518.55

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Solution

The fourth proportional to 5,865.99, 8,786.74 and 3,518.55 is: 5,270.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,865.99 : 8,786.74 = 3,518.55 : x
  2. Step 2: Convert to fraction form
    5,865.99/8,786.74 = 3,518.55/x
  3. Step 3: Cross multiply
    5,865.99x = 8,786.74 × 3,518.55
  4. Step 4: Simplify right side
    5,865.99x = 30,916,584.03
  5. Step 5: Solve for x
    x = 30,916,584.03/5,865.99
  6. Step 6: Final answer
    x = 5,270.48

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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.