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Finding the Fourth Proportional to 6,217.65, 8,579.97 and 3,564.69

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Solution

The fourth proportional to 6,217.65, 8,579.97 and 3,564.69 is: 4,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,217.65 : 8,579.97 = 3,564.69 : x
  2. Step 2: Convert to fraction form
    6,217.65/8,579.97 = 3,564.69/x
  3. Step 3: Cross multiply
    6,217.65x = 8,579.97 × 3,564.69
  4. Step 4: Simplify right side
    6,217.65x = 30,584,933.26
  5. Step 5: Solve for x
    x = 30,584,933.26/6,217.65
  6. Step 6: Final answer
    x = 4,919.05

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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.