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Finding the Fourth Proportional to 14,504, 21,757.60 and 4,640.96

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Solution

The fourth proportional to 14,504, 21,757.60 and 4,640.96 is: 6,961.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,504 : 21,757.60 = 4,640.96 : x
  2. Step 2: Convert to fraction form
    14,504/21,757.60 = 4,640.96/x
  3. Step 3: Cross multiply
    14,504x = 21,757.60 × 4,640.96
  4. Step 4: Simplify right side
    14,504x = 100,976,151.30
  5. Step 5: Solve for x
    x = 100,976,151.30/14,504
  6. Step 6: Final answer
    x = 6,961.95

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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.