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Finding the Fourth Proportional to 12,361.85, 18,550.82 and 5,348.71

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Solution

The fourth proportional to 12,361.85, 18,550.82 and 5,348.71 is: 8,026.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361.85 : 18,550.82 = 5,348.71 : x
  2. Step 2: Convert to fraction form
    12,361.85/18,550.82 = 5,348.71/x
  3. Step 3: Cross multiply
    12,361.85x = 18,550.82 × 5,348.71
  4. Step 4: Simplify right side
    12,361.85x = 99,222,956.44
  5. Step 5: Solve for x
    x = 99,222,956.44/12,361.85
  6. Step 6: Final answer
    x = 8,026.55

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1.5x scale

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.