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Finding the Fourth Proportional to 4,887.94, 6,747.70 and 2,791.66

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Solution

The fourth proportional to 4,887.94, 6,747.70 and 2,791.66 is: 3,853.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.94 : 6,747.70 = 2,791.66 : x
  2. Step 2: Convert to fraction form
    4,887.94/6,747.70 = 2,791.66/x
  3. Step 3: Cross multiply
    4,887.94x = 6,747.70 × 2,791.66
  4. Step 4: Simplify right side
    4,887.94x = 18,837,284.18
  5. Step 5: Solve for x
    x = 18,837,284.18/4,887.94
  6. Step 6: Final answer
    x = 3,853.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.