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Finding the Fourth Proportional to 4,861.66, 7,292.82 and 1,939.94

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Solution

The fourth proportional to 4,861.66, 7,292.82 and 1,939.94 is: 2,910.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,861.66 : 7,292.82 = 1,939.94 : x
  2. Step 2: Convert to fraction form
    4,861.66/7,292.82 = 1,939.94/x
  3. Step 3: Cross multiply
    4,861.66x = 7,292.82 × 1,939.94
  4. Step 4: Simplify right side
    4,861.66x = 14,147,633.23
  5. Step 5: Solve for x
    x = 14,147,633.23/4,861.66
  6. Step 6: Final answer
    x = 2,910.04

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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.