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Finding the Fourth Proportional to 29,969.52, 41,361.75 and 18,039.30

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Solution

The fourth proportional to 29,969.52, 41,361.75 and 18,039.30 is: 24,896.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,969.52 : 41,361.75 = 18,039.30 : x
  2. Step 2: Convert to fraction form
    29,969.52/41,361.75 = 18,039.30/x
  3. Step 3: Cross multiply
    29,969.52x = 41,361.75 × 18,039.30
  4. Step 4: Simplify right side
    29,969.52x = 746,137,016.78
  5. Step 5: Solve for x
    x = 746,137,016.78/29,969.52
  6. Step 6: Final answer
    x = 24,896.53

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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.