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Finding the Fourth Proportional to 2,436.92, 3,655.42 and 793.64

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Solution

The fourth proportional to 2,436.92, 3,655.42 and 793.64 is: 1,190.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,436.92 : 3,655.42 = 793.64 : x
  2. Step 2: Convert to fraction form
    2,436.92/3,655.42 = 793.64/x
  3. Step 3: Cross multiply
    2,436.92x = 3,655.42 × 793.64
  4. Step 4: Simplify right side
    2,436.92x = 2,901,087.53
  5. Step 5: Solve for x
    x = 2,901,087.53/2,436.92
  6. Step 6: Final answer
    x = 1,190.47

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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.