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Finding the Fourth Proportional to 4,489.86, 6,733.54 and 2,685.48

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Solution

The fourth proportional to 4,489.86, 6,733.54 and 2,685.48 is: 4,027.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,489.86 : 6,733.54 = 2,685.48 : x
  2. Step 2: Convert to fraction form
    4,489.86/6,733.54 = 2,685.48/x
  3. Step 3: Cross multiply
    4,489.86x = 6,733.54 × 2,685.48
  4. Step 4: Simplify right side
    4,489.86x = 18,082,753.33
  5. Step 5: Solve for x
    x = 18,082,753.33/4,489.86
  6. Step 6: Final answer
    x = 4,027.46

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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.