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Finding the Fourth Proportional to 65,879.56, 98,823.76 and 23,179.88

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Solution

The fourth proportional to 65,879.56, 98,823.76 and 23,179.88 is: 34,771.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,879.56 : 98,823.76 = 23,179.88 : x
  2. Step 2: Convert to fraction form
    65,879.56/98,823.76 = 23,179.88/x
  3. Step 3: Cross multiply
    65,879.56x = 98,823.76 × 23,179.88
  4. Step 4: Simplify right side
    65,879.56x = 2,290,722,897.95
  5. Step 5: Solve for x
    x = 2,290,722,897.95/65,879.56
  6. Step 6: Final answer
    x = 34,771.38

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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.