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Finding the Fourth Proportional to 11,573.75, 17,361.43 and 5,728.79

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Solution

The fourth proportional to 11,573.75, 17,361.43 and 5,728.79 is: 8,593.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,573.75 : 17,361.43 = 5,728.79 : x
  2. Step 2: Convert to fraction form
    11,573.75/17,361.43 = 5,728.79/x
  3. Step 3: Cross multiply
    11,573.75x = 17,361.43 × 5,728.79
  4. Step 4: Simplify right side
    11,573.75x = 99,460,015.65
  5. Step 5: Solve for x
    x = 99,460,015.65/11,573.75
  6. Step 6: Final answer
    x = 8,593.58

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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.