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Finding the Fourth Proportional to 5,361.06, 7,394.82 and 3,866.61

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Solution

The fourth proportional to 5,361.06, 7,394.82 and 3,866.61 is: 5,333.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,361.06 : 7,394.82 = 3,866.61 : x
  2. Step 2: Convert to fraction form
    5,361.06/7,394.82 = 3,866.61/x
  3. Step 3: Cross multiply
    5,361.06x = 7,394.82 × 3,866.61
  4. Step 4: Simplify right side
    5,361.06x = 28,592,884.96
  5. Step 5: Solve for x
    x = 28,592,884.96/5,361.06
  6. Step 6: Final answer
    x = 5,333.44

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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.