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Finding the Fourth Proportional to 12,361.67, 18,544.90 and 4,039.46

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Solution

The fourth proportional to 12,361.67, 18,544.90 and 4,039.46 is: 6,059.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361.67 : 18,544.90 = 4,039.46 : x
  2. Step 2: Convert to fraction form
    12,361.67/18,544.90 = 4,039.46/x
  3. Step 3: Cross multiply
    12,361.67x = 18,544.90 × 4,039.46
  4. Step 4: Simplify right side
    12,361.67x = 74,911,381.75
  5. Step 5: Solve for x
    x = 74,911,381.75/12,361.67
  6. Step 6: Final answer
    x = 6,059.97

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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.