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Finding the Fourth Proportional to 19,134.94, 28,704.06 and 5,283.94

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Solution

The fourth proportional to 19,134.94, 28,704.06 and 5,283.94 is: 7,926.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,134.94 : 28,704.06 = 5,283.94 : x
  2. Step 2: Convert to fraction form
    19,134.94/28,704.06 = 5,283.94/x
  3. Step 3: Cross multiply
    19,134.94x = 28,704.06 × 5,283.94
  4. Step 4: Simplify right side
    19,134.94x = 151,670,530.80
  5. Step 5: Solve for x
    x = 151,670,530.80/19,134.94
  6. Step 6: Final answer
    x = 7,926.37

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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.