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Finding the Fourth Proportional to 17,993.53, 26,991.60 and 5,511.94

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Solution

The fourth proportional to 17,993.53, 26,991.60 and 5,511.94 is: 8,268.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,993.53 : 26,991.60 = 5,511.94 : x
  2. Step 2: Convert to fraction form
    17,993.53/26,991.60 = 5,511.94/x
  3. Step 3: Cross multiply
    17,993.53x = 26,991.60 × 5,511.94
  4. Step 4: Simplify right side
    17,993.53x = 148,776,079.70
  5. Step 5: Solve for x
    x = 148,776,079.70/17,993.53
  6. Step 6: Final answer
    x = 8,268.31

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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.