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Finding the Fourth Proportional to 50,455.88, 69,631.27 and 28,099.88

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Solution

The fourth proportional to 50,455.88, 69,631.27 and 28,099.88 is: 38,779.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,455.88 : 69,631.27 = 28,099.88 : x
  2. Step 2: Convert to fraction form
    50,455.88/69,631.27 = 28,099.88/x
  3. Step 3: Cross multiply
    50,455.88x = 69,631.27 × 28,099.88
  4. Step 4: Simplify right side
    50,455.88x = 1,956,629,983.09
  5. Step 5: Solve for x
    x = 1,956,629,983.09/50,455.88
  6. Step 6: Final answer
    x = 38,779.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.