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Finding the Fourth Proportional to 61,087.41, 91,608.60 and 21,096.22

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Solution

The fourth proportional to 61,087.41, 91,608.60 and 21,096.22 is: 31,636.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,087.41 : 91,608.60 = 21,096.22 : x
  2. Step 2: Convert to fraction form
    61,087.41/91,608.60 = 21,096.22/x
  3. Step 3: Cross multiply
    61,087.41x = 91,608.60 × 21,096.22
  4. Step 4: Simplify right side
    61,087.41x = 1,932,595,179.49
  5. Step 5: Solve for x
    x = 1,932,595,179.49/61,087.41
  6. Step 6: Final answer
    x = 31,636.55

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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.