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Finding the Fourth Proportional to 5,235.42, 7,224.89 and 2,845.41

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Solution

The fourth proportional to 5,235.42, 7,224.89 and 2,845.41 is: 3,926.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.42 : 7,224.89 = 2,845.41 : x
  2. Step 2: Convert to fraction form
    5,235.42/7,224.89 = 2,845.41/x
  3. Step 3: Cross multiply
    5,235.42x = 7,224.89 × 2,845.41
  4. Step 4: Simplify right side
    5,235.42x = 20,557,738.13
  5. Step 5: Solve for x
    x = 20,557,738.13/5,235.42
  6. Step 6: Final answer
    x = 3,926.66

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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.