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Finding the Fourth Proportional to 7,795.10, 11,696.60 and 3,412.60

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Solution

The fourth proportional to 7,795.10, 11,696.60 and 3,412.60 is: 5,120.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,795.10 : 11,696.60 = 3,412.60 : x
  2. Step 2: Convert to fraction form
    7,795.10/11,696.60 = 3,412.60/x
  3. Step 3: Cross multiply
    7,795.10x = 11,696.60 × 3,412.60
  4. Step 4: Simplify right side
    7,795.10x = 39,915,796.45
  5. Step 5: Solve for x
    x = 39,915,796.45/7,795.10
  6. Step 6: Final answer
    x = 5,120.62

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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.