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Finding the Fourth Proportional to 5,361.31, 7,394.65 and 3,682.99

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Solution

The fourth proportional to 5,361.31, 7,394.65 and 3,682.99 is: 5,079.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,361.31 : 7,394.65 = 3,682.99 : x
  2. Step 2: Convert to fraction form
    5,361.31/7,394.65 = 3,682.99/x
  3. Step 3: Cross multiply
    5,361.31x = 7,394.65 × 3,682.99
  4. Step 4: Simplify right side
    5,361.31x = 27,234,422.00
  5. Step 5: Solve for x
    x = 27,234,422.00/5,361.31
  6. Step 6: Final answer
    x = 5,079.81

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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.