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Finding the Fourth Proportional to 8,361.68, 12,537.72 and 2,516.56

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Solution

The fourth proportional to 8,361.68, 12,537.72 and 2,516.56 is: 3,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.68 : 12,537.72 = 2,516.56 : x
  2. Step 2: Convert to fraction form
    8,361.68/12,537.72 = 2,516.56/x
  3. Step 3: Cross multiply
    8,361.68x = 12,537.72 × 2,516.56
  4. Step 4: Simplify right side
    8,361.68x = 31,551,924.64
  5. Step 5: Solve for x
    x = 31,551,924.64/8,361.68
  6. Step 6: Final answer
    x = 3,773.40

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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.