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Finding the Fourth Proportional to 6,361.48, 8,778.81 and 3,566.98

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Solution

The fourth proportional to 6,361.48, 8,778.81 and 3,566.98 is: 4,922.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.48 : 8,778.81 = 3,566.98 : x
  2. Step 2: Convert to fraction form
    6,361.48/8,778.81 = 3,566.98/x
  3. Step 3: Cross multiply
    6,361.48x = 8,778.81 × 3,566.98
  4. Step 4: Simplify right side
    6,361.48x = 31,313,839.69
  5. Step 5: Solve for x
    x = 31,313,839.69/6,361.48
  6. Step 6: Final answer
    x = 4,922.41

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1.5x scale

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.