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Finding the Fourth Proportional to 65,672.20, 98,445.25 and 41,912.67

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Solution

The fourth proportional to 65,672.20, 98,445.25 and 41,912.67 is: 62,828.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,672.20 : 98,445.25 = 41,912.67 : x
  2. Step 2: Convert to fraction form
    65,672.20/98,445.25 = 41,912.67/x
  3. Step 3: Cross multiply
    65,672.20x = 98,445.25 × 41,912.67
  4. Step 4: Simplify right side
    65,672.20x = 4,126,103,171.54
  5. Step 5: Solve for x
    x = 4,126,103,171.54/65,672.20
  6. Step 6: Final answer
    x = 62,828.77

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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.