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Finding the Fourth Proportional to 6,613.56, 9,914.88 and 3,324.96

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Solution

The fourth proportional to 6,613.56, 9,914.88 and 3,324.96 is: 4,984.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.56 : 9,914.88 = 3,324.96 : x
  2. Step 2: Convert to fraction form
    6,613.56/9,914.88 = 3,324.96/x
  3. Step 3: Cross multiply
    6,613.56x = 9,914.88 × 3,324.96
  4. Step 4: Simplify right side
    6,613.56x = 32,966,579.40
  5. Step 5: Solve for x
    x = 32,966,579.40/6,613.56
  6. Step 6: Final answer
    x = 4,984.69

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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.