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Finding the Fourth Proportional to 6,190, 8,544.36 and 3,706

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Solution

The fourth proportional to 6,190, 8,544.36 and 3,706 is: 5,115.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,190 : 8,544.36 = 3,706 : x
  2. Step 2: Convert to fraction form
    6,190/8,544.36 = 3,706/x
  3. Step 3: Cross multiply
    6,190x = 8,544.36 × 3,706
  4. Step 4: Simplify right side
    6,190x = 31,665,398.16
  5. Step 5: Solve for x
    x = 31,665,398.16/6,190
  6. Step 6: Final answer
    x = 5,115.57

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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.