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Finding the Fourth Proportional to 61,335.36, 92,019.78 and 21,896.46

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Solution

The fourth proportional to 61,335.36, 92,019.78 and 21,896.46 is: 32,850.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,335.36 : 92,019.78 = 21,896.46 : x
  2. Step 2: Convert to fraction form
    61,335.36/92,019.78 = 21,896.46/x
  3. Step 3: Cross multiply
    61,335.36x = 92,019.78 × 21,896.46
  4. Step 4: Simplify right side
    61,335.36x = 2,014,907,431.98
  5. Step 5: Solve for x
    x = 2,014,907,431.98/61,335.36
  6. Step 6: Final answer
    x = 32,850.67

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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.