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Finding the Fourth Proportional to 11,361.32, 17,039.74 and 5,817.64

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Solution

The fourth proportional to 11,361.32, 17,039.74 and 5,817.64 is: 8,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.32 : 17,039.74 = 5,817.64 : x
  2. Step 2: Convert to fraction form
    11,361.32/17,039.74 = 5,817.64/x
  3. Step 3: Cross multiply
    11,361.32x = 17,039.74 × 5,817.64
  4. Step 4: Simplify right side
    11,361.32x = 99,131,073.01
  5. Step 5: Solve for x
    x = 99,131,073.01/11,361.32
  6. Step 6: Final answer
    x = 8,725.31

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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.