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Finding the Fourth Proportional to 6,658.26, 9,988.17 and 2,216.33

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Solution

The fourth proportional to 6,658.26, 9,988.17 and 2,216.33 is: 3,324.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,658.26 : 9,988.17 = 2,216.33 : x
  2. Step 2: Convert to fraction form
    6,658.26/9,988.17 = 2,216.33/x
  3. Step 3: Cross multiply
    6,658.26x = 9,988.17 × 2,216.33
  4. Step 4: Simplify right side
    6,658.26x = 22,137,080.82
  5. Step 5: Solve for x
    x = 22,137,080.82/6,658.26
  6. Step 6: Final answer
    x = 3,324.75

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Similar ratio
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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.