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Finding the Fourth Proportional to 50,709.44, 69,978.43 and 28,046.66

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Solution

The fourth proportional to 50,709.44, 69,978.43 and 28,046.66 is: 38,704.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,709.44 : 69,978.43 = 28,046.66 : x
  2. Step 2: Convert to fraction form
    50,709.44/69,978.43 = 28,046.66/x
  3. Step 3: Cross multiply
    50,709.44x = 69,978.43 × 28,046.66
  4. Step 4: Simplify right side
    50,709.44x = 1,962,660,918.71
  5. Step 5: Solve for x
    x = 1,962,660,918.71/50,709.44
  6. Step 6: Final answer
    x = 38,704.05

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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.