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Finding the Fourth Proportional to 9,964.86, 13,736.47 and 8,193.39

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Solution

The fourth proportional to 9,964.86, 13,736.47 and 8,193.39 is: 11,294.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,964.86 : 13,736.47 = 8,193.39 : x
  2. Step 2: Convert to fraction form
    9,964.86/13,736.47 = 8,193.39/x
  3. Step 3: Cross multiply
    9,964.86x = 13,736.47 × 8,193.39
  4. Step 4: Simplify right side
    9,964.86x = 112,548,255.93
  5. Step 5: Solve for x
    x = 112,548,255.93/9,964.86
  6. Step 6: Final answer
    x = 11,294.51

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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.