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Finding the Fourth Proportional to 67,902.21, 93,704.94 and 37,687.89

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Solution

The fourth proportional to 67,902.21, 93,704.94 and 37,687.89 is: 52,009.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,902.21 : 93,704.94 = 37,687.89 : x
  2. Step 2: Convert to fraction form
    67,902.21/93,704.94 = 37,687.89/x
  3. Step 3: Cross multiply
    67,902.21x = 93,704.94 × 37,687.89
  4. Step 4: Simplify right side
    67,902.21x = 3,531,541,471.18
  5. Step 5: Solve for x
    x = 3,531,541,471.18/67,902.21
  6. Step 6: Final answer
    x = 52,009.23

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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.