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Finding the Fourth Proportional to 10,791.82, 16,187.76 and 3,000.64

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Solution

The fourth proportional to 10,791.82, 16,187.76 and 3,000.64 is: 4,500.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.82 : 16,187.76 = 3,000.64 : x
  2. Step 2: Convert to fraction form
    10,791.82/16,187.76 = 3,000.64/x
  3. Step 3: Cross multiply
    10,791.82x = 16,187.76 × 3,000.64
  4. Step 4: Simplify right side
    10,791.82x = 48,573,640.17
  5. Step 5: Solve for x
    x = 48,573,640.17/10,791.82
  6. Step 6: Final answer
    x = 4,500.97

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1.5x scale

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.