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Finding the Fourth Proportional to 22,551.84, 31,121.37 and 13,481.37

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Solution

The fourth proportional to 22,551.84, 31,121.37 and 13,481.37 is: 18,604.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,551.84 : 31,121.37 = 13,481.37 : x
  2. Step 2: Convert to fraction form
    22,551.84/31,121.37 = 13,481.37/x
  3. Step 3: Cross multiply
    22,551.84x = 31,121.37 × 13,481.37
  4. Step 4: Simplify right side
    22,551.84x = 419,558,703.88
  5. Step 5: Solve for x
    x = 419,558,703.88/22,551.84
  6. Step 6: Final answer
    x = 18,604.19

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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.