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Finding the Fourth Proportional to 50,951.80, 70,317.93 and 28,295.20

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Solution

The fourth proportional to 50,951.80, 70,317.93 and 28,295.20 is: 39,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,951.80 : 70,317.93 = 28,295.20 : x
  2. Step 2: Convert to fraction form
    50,951.80/70,317.93 = 28,295.20/x
  3. Step 3: Cross multiply
    50,951.80x = 70,317.93 × 28,295.20
  4. Step 4: Simplify right side
    50,951.80x = 1,989,659,892.94
  5. Step 5: Solve for x
    x = 1,989,659,892.94/50,951.80
  6. Step 6: Final answer
    x = 39,049.85

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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.