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Finding the Fourth Proportional to 87,797.75, 131,683.25 and 28,633.32

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Solution

The fourth proportional to 87,797.75, 131,683.25 and 28,633.32 is: 42,945.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,797.75 : 131,683.25 = 28,633.32 : x
  2. Step 2: Convert to fraction form
    87,797.75/131,683.25 = 28,633.32/x
  3. Step 3: Cross multiply
    87,797.75x = 131,683.25 × 28,633.32
  4. Step 4: Simplify right side
    87,797.75x = 3,770,528,492.72
  5. Step 5: Solve for x
    x = 3,770,528,492.72/87,797.75
  6. Step 6: Final answer
    x = 42,945.62

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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.