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Finding the Fourth Proportional to 57,804.43, 86,702.08 and 18,361.89

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Solution

The fourth proportional to 57,804.43, 86,702.08 and 18,361.89 is: 27,541.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,804.43 : 86,702.08 = 18,361.89 : x
  2. Step 2: Convert to fraction form
    57,804.43/86,702.08 = 18,361.89/x
  3. Step 3: Cross multiply
    57,804.43x = 86,702.08 × 18,361.89
  4. Step 4: Simplify right side
    57,804.43x = 1,592,014,055.73
  5. Step 5: Solve for x
    x = 1,592,014,055.73/57,804.43
  6. Step 6: Final answer
    x = 27,541.38

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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.