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Finding the Fourth Proportional to 6,217.64, 8,579.82 and 3,564.44

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Solution

The fourth proportional to 6,217.64, 8,579.82 and 3,564.44 is: 4,918.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,217.64 : 8,579.82 = 3,564.44 : x
  2. Step 2: Convert to fraction form
    6,217.64/8,579.82 = 3,564.44/x
  3. Step 3: Cross multiply
    6,217.64x = 8,579.82 × 3,564.44
  4. Step 4: Simplify right side
    6,217.64x = 30,582,253.60
  5. Step 5: Solve for x
    x = 30,582,253.60/6,217.64
  6. Step 6: Final answer
    x = 4,918.63

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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.