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Finding the Fourth Proportional to 4,606.76, 6,361.83 and 3,939.74

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Solution

The fourth proportional to 4,606.76, 6,361.83 and 3,939.74 is: 5,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,606.76 : 6,361.83 = 3,939.74 : x
  2. Step 2: Convert to fraction form
    4,606.76/6,361.83 = 3,939.74/x
  3. Step 3: Cross multiply
    4,606.76x = 6,361.83 × 3,939.74
  4. Step 4: Simplify right side
    4,606.76x = 25,063,956.12
  5. Step 5: Solve for x
    x = 25,063,956.12/4,606.76
  6. Step 6: Final answer
    x = 5,440.69

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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.