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Finding the Fourth Proportional to 6,667.67, 9,201.21 and 4,396.23

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Solution

The fourth proportional to 6,667.67, 9,201.21 and 4,396.23 is: 6,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,667.67 : 9,201.21 = 4,396.23 : x
  2. Step 2: Convert to fraction form
    6,667.67/9,201.21 = 4,396.23/x
  3. Step 3: Cross multiply
    6,667.67x = 9,201.21 × 4,396.23
  4. Step 4: Simplify right side
    6,667.67x = 40,450,635.44
  5. Step 5: Solve for x
    x = 40,450,635.44/6,667.67
  6. Step 6: Final answer
    x = 6,066.69

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Half scale
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Double scale
Find fourth proportional to 6,668.67, 9,202.59 and 4,397.23
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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.