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Finding the Fourth Proportional to 6,613.39, 9,126.74 and 3,629.33

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Solution

The fourth proportional to 6,613.39, 9,126.74 and 3,629.33 is: 5,008.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.39 : 9,126.74 = 3,629.33 : x
  2. Step 2: Convert to fraction form
    6,613.39/9,126.74 = 3,629.33/x
  3. Step 3: Cross multiply
    6,613.39x = 9,126.74 × 3,629.33
  4. Step 4: Simplify right side
    6,613.39x = 33,123,928.53
  5. Step 5: Solve for x
    x = 33,123,928.53/6,613.39
  6. Step 6: Final answer
    x = 5,008.62

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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.