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Finding the Fourth Proportional to 43,361.93, 65,079.93 and 30,912.41

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Solution

The fourth proportional to 43,361.93, 65,079.93 and 30,912.41 is: 46,395.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,361.93 : 65,079.93 = 30,912.41 : x
  2. Step 2: Convert to fraction form
    43,361.93/65,079.93 = 30,912.41/x
  3. Step 3: Cross multiply
    43,361.93x = 65,079.93 × 30,912.41
  4. Step 4: Simplify right side
    43,361.93x = 2,011,777,153.53
  5. Step 5: Solve for x
    x = 2,011,777,153.53/43,361.93
  6. Step 6: Final answer
    x = 46,395.01

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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.