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Finding the Fourth Proportional to 2,736.63, 4,105.01 and 887.75

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Solution

The fourth proportional to 2,736.63, 4,105.01 and 887.75 is: 1,331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,736.63 : 4,105.01 = 887.75 : x
  2. Step 2: Convert to fraction form
    2,736.63/4,105.01 = 887.75/x
  3. Step 3: Cross multiply
    2,736.63x = 4,105.01 × 887.75
  4. Step 4: Simplify right side
    2,736.63x = 3,644,197.66
  5. Step 5: Solve for x
    x = 3,644,197.66/2,736.63
  6. Step 6: Final answer
    x = 1,331.64

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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.