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Finding the Fourth Proportional to 13,793.75, 20,696.70 and 4,559.75

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Solution

The fourth proportional to 13,793.75, 20,696.70 and 4,559.75 is: 6,841.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,793.75 : 20,696.70 = 4,559.75 : x
  2. Step 2: Convert to fraction form
    13,793.75/20,696.70 = 4,559.75/x
  3. Step 3: Cross multiply
    13,793.75x = 20,696.70 × 4,559.75
  4. Step 4: Simplify right side
    13,793.75x = 94,371,777.83
  5. Step 5: Solve for x
    x = 94,371,777.83/13,793.75
  6. Step 6: Final answer
    x = 6,841.63

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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.