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Finding the Fourth Proportional to 11,893.77, 17,847.48 and 5,319.11

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Solution

The fourth proportional to 11,893.77, 17,847.48 and 5,319.11 is: 7,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,893.77 : 17,847.48 = 5,319.11 : x
  2. Step 2: Convert to fraction form
    11,893.77/17,847.48 = 5,319.11/x
  3. Step 3: Cross multiply
    11,893.77x = 17,847.48 × 5,319.11
  4. Step 4: Simplify right side
    11,893.77x = 94,932,620.11
  5. Step 5: Solve for x
    x = 94,932,620.11/11,893.77
  6. Step 6: Final answer
    x = 7,981.71

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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.