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Finding the Fourth Proportional to 9,998.43, 13,797.27 and 6,221.48

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Solution

The fourth proportional to 9,998.43, 13,797.27 and 6,221.48 is: 8,585.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.43 : 13,797.27 = 6,221.48 : x
  2. Step 2: Convert to fraction form
    9,998.43/13,797.27 = 6,221.48/x
  3. Step 3: Cross multiply
    9,998.43x = 13,797.27 × 6,221.48
  4. Step 4: Simplify right side
    9,998.43x = 85,839,370.37
  5. Step 5: Solve for x
    x = 85,839,370.37/9,998.43
  6. Step 6: Final answer
    x = 8,585.29

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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.