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Finding the Fourth Proportional to 34,469.96, 51,705.16 and 18,879.08

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Solution

The fourth proportional to 34,469.96, 51,705.16 and 18,879.08 is: 28,318.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,469.96 : 51,705.16 = 18,879.08 : x
  2. Step 2: Convert to fraction form
    34,469.96/51,705.16 = 18,879.08/x
  3. Step 3: Cross multiply
    34,469.96x = 51,705.16 × 18,879.08
  4. Step 4: Simplify right side
    34,469.96x = 976,145,852.05
  5. Step 5: Solve for x
    x = 976,145,852.05/34,469.96
  6. Step 6: Final answer
    x = 28,318.74

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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.