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Finding the Fourth Proportional to 6,215.66, 8,571.17 and 4,799.58

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Solution

The fourth proportional to 6,215.66, 8,571.17 and 4,799.58 is: 6,618.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.66 : 8,571.17 = 4,799.58 : x
  2. Step 2: Convert to fraction form
    6,215.66/8,571.17 = 4,799.58/x
  3. Step 3: Cross multiply
    6,215.66x = 8,571.17 × 4,799.58
  4. Step 4: Simplify right side
    6,215.66x = 41,137,993.07
  5. Step 5: Solve for x
    x = 41,137,993.07/6,215.66
  6. Step 6: Final answer
    x = 6,618.44

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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.