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Finding the Fourth Proportional to 19,056.66, 28,584.78 and 7,361.67

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Solution

The fourth proportional to 19,056.66, 28,584.78 and 7,361.67 is: 11,042.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,056.66 : 28,584.78 = 7,361.67 : x
  2. Step 2: Convert to fraction form
    19,056.66/28,584.78 = 7,361.67/x
  3. Step 3: Cross multiply
    19,056.66x = 28,584.78 × 7,361.67
  4. Step 4: Simplify right side
    19,056.66x = 210,431,717.38
  5. Step 5: Solve for x
    x = 210,431,717.38/19,056.66
  6. Step 6: Final answer
    x = 11,042.42

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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.