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Finding the Fourth Proportional to 4,728.46, 7,092 and 1,608.56

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Solution

The fourth proportional to 4,728.46, 7,092 and 1,608.56 is: 2,412.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,728.46 : 7,092 = 1,608.56 : x
  2. Step 2: Convert to fraction form
    4,728.46/7,092 = 1,608.56/x
  3. Step 3: Cross multiply
    4,728.46x = 7,092 × 1,608.56
  4. Step 4: Simplify right side
    4,728.46x = 11,407,907.52
  5. Step 5: Solve for x
    x = 11,407,907.52/4,728.46
  6. Step 6: Final answer
    x = 2,412.61

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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.