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Finding the Fourth Proportional to 11,797.47, 17,696.21 and 5,221.89

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Solution

The fourth proportional to 11,797.47, 17,696.21 and 5,221.89 is: 7,832.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,797.47 : 17,696.21 = 5,221.89 : x
  2. Step 2: Convert to fraction form
    11,797.47/17,696.21 = 5,221.89/x
  3. Step 3: Cross multiply
    11,797.47x = 17,696.21 × 5,221.89
  4. Step 4: Simplify right side
    11,797.47x = 92,407,635.93
  5. Step 5: Solve for x
    x = 92,407,635.93/11,797.47
  6. Step 6: Final answer
    x = 7,832.84

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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.