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Finding the Fourth Proportional to 61,785.81, 92,685.92 and 22,361.49

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Solution

The fourth proportional to 61,785.81, 92,685.92 and 22,361.49 is: 33,544.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,785.81 : 92,685.92 = 22,361.49 : x
  2. Step 2: Convert to fraction form
    61,785.81/92,685.92 = 22,361.49/x
  3. Step 3: Cross multiply
    61,785.81x = 92,685.92 × 22,361.49
  4. Step 4: Simplify right side
    61,785.81x = 2,072,595,161.41
  5. Step 5: Solve for x
    x = 2,072,595,161.41/61,785.81
  6. Step 6: Final answer
    x = 33,544.84

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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.