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Finding the Fourth Proportional to 4,834.53, 7,251.72 and 1,912.81

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Solution

The fourth proportional to 4,834.53, 7,251.72 and 1,912.81 is: 2,869.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,834.53 : 7,251.72 = 1,912.81 : x
  2. Step 2: Convert to fraction form
    4,834.53/7,251.72 = 1,912.81/x
  3. Step 3: Cross multiply
    4,834.53x = 7,251.72 × 1,912.81
  4. Step 4: Simplify right side
    4,834.53x = 13,871,162.53
  5. Step 5: Solve for x
    x = 13,871,162.53/4,834.53
  6. Step 6: Final answer
    x = 2,869.19

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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.