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Finding the Fourth Proportional to 2,625.26, 3,937.88 and 893.88

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Solution

The fourth proportional to 2,625.26, 3,937.88 and 893.88 is: 1,340.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.26 : 3,937.88 = 893.88 : x
  2. Step 2: Convert to fraction form
    2,625.26/3,937.88 = 893.88/x
  3. Step 3: Cross multiply
    2,625.26x = 3,937.88 × 893.88
  4. Step 4: Simplify right side
    2,625.26x = 3,519,992.17
  5. Step 5: Solve for x
    x = 3,519,992.17/2,625.26
  6. Step 6: Final answer
    x = 1,340.82

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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.