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Finding the Fourth Proportional to 7,916.46, 11,874.42 and 3,758.46

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Solution

The fourth proportional to 7,916.46, 11,874.42 and 3,758.46 is: 5,637.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.46 : 11,874.42 = 3,758.46 : x
  2. Step 2: Convert to fraction form
    7,916.46/11,874.42 = 3,758.46/x
  3. Step 3: Cross multiply
    7,916.46x = 11,874.42 × 3,758.46
  4. Step 4: Simplify right side
    7,916.46x = 44,629,532.59
  5. Step 5: Solve for x
    x = 44,629,532.59/7,916.46
  6. Step 6: Final answer
    x = 5,637.56

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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.