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Finding the Fourth Proportional to 3,969.50, 5,954.25 and 1,233.50

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Solution

The fourth proportional to 3,969.50, 5,954.25 and 1,233.50 is: 1,850.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.50 : 5,954.25 = 1,233.50 : x
  2. Step 2: Convert to fraction form
    3,969.50/5,954.25 = 1,233.50/x
  3. Step 3: Cross multiply
    3,969.50x = 5,954.25 × 1,233.50
  4. Step 4: Simplify right side
    3,969.50x = 7,344,567.38
  5. Step 5: Solve for x
    x = 7,344,567.38/3,969.50
  6. Step 6: Final answer
    x = 1,850.25

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Double scale
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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.