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Finding the Fourth Proportional to 6,361.54, 8,778.42 and 3,566.50

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Solution

The fourth proportional to 6,361.54, 8,778.42 and 3,566.50 is: 4,921.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.54 : 8,778.42 = 3,566.50 : x
  2. Step 2: Convert to fraction form
    6,361.54/8,778.42 = 3,566.50/x
  3. Step 3: Cross multiply
    6,361.54x = 8,778.42 × 3,566.50
  4. Step 4: Simplify right side
    6,361.54x = 31,308,234.93
  5. Step 5: Solve for x
    x = 31,308,234.93/6,361.54
  6. Step 6: Final answer
    x = 4,921.49

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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.