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Finding the Fourth Proportional to 6,224.76, 8,589.60 and 3,867.60

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Solution

The fourth proportional to 6,224.76, 8,589.60 and 3,867.60 is: 5,336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,224.76 : 8,589.60 = 3,867.60 : x
  2. Step 2: Convert to fraction form
    6,224.76/8,589.60 = 3,867.60/x
  3. Step 3: Cross multiply
    6,224.76x = 8,589.60 × 3,867.60
  4. Step 4: Simplify right side
    6,224.76x = 33,221,136.96
  5. Step 5: Solve for x
    x = 33,221,136.96/6,224.76
  6. Step 6: Final answer
    x = 5,336.93

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Half scale
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Double scale
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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.