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Finding the Fourth Proportional to 5,217.68, 7,827.04 and 1,755.44

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Solution

The fourth proportional to 5,217.68, 7,827.04 and 1,755.44 is: 2,633.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.68 : 7,827.04 = 1,755.44 : x
  2. Step 2: Convert to fraction form
    5,217.68/7,827.04 = 1,755.44/x
  3. Step 3: Cross multiply
    5,217.68x = 7,827.04 × 1,755.44
  4. Step 4: Simplify right side
    5,217.68x = 13,739,899.10
  5. Step 5: Solve for x
    x = 13,739,899.10/5,217.68
  6. Step 6: Final answer
    x = 2,633.33

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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.