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Finding the Fourth Proportional to 64,481.76, 88,984.83 and 36,187.44

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Solution

The fourth proportional to 64,481.76, 88,984.83 and 36,187.44 is: 49,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,481.76 : 88,984.83 = 36,187.44 : x
  2. Step 2: Convert to fraction form
    64,481.76/88,984.83 = 36,187.44/x
  3. Step 3: Cross multiply
    64,481.76x = 88,984.83 × 36,187.44
  4. Step 4: Simplify right side
    64,481.76x = 3,220,133,196.54
  5. Step 5: Solve for x
    x = 3,220,133,196.54/64,481.76
  6. Step 6: Final answer
    x = 49,938.67

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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.