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Finding the Fourth Proportional to 3,093.72, 4,639.66 and 901.76

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Solution

The fourth proportional to 3,093.72, 4,639.66 and 901.76 is: 1,352.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,093.72 : 4,639.66 = 901.76 : x
  2. Step 2: Convert to fraction form
    3,093.72/4,639.66 = 901.76/x
  3. Step 3: Cross multiply
    3,093.72x = 4,639.66 × 901.76
  4. Step 4: Simplify right side
    3,093.72x = 4,183,836.60
  5. Step 5: Solve for x
    x = 4,183,836.60/3,093.72
  6. Step 6: Final answer
    x = 1,352.37

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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.