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Finding the Fourth Proportional to 33,168.88, 49,709.44 and 13,424.08

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Solution

The fourth proportional to 33,168.88, 49,709.44 and 13,424.08 is: 20,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,168.88 : 49,709.44 = 13,424.08 : x
  2. Step 2: Convert to fraction form
    33,168.88/49,709.44 = 13,424.08/x
  3. Step 3: Cross multiply
    33,168.88x = 49,709.44 × 13,424.08
  4. Step 4: Simplify right side
    33,168.88x = 667,303,499.32
  5. Step 5: Solve for x
    x = 667,303,499.32/33,168.88
  6. Step 6: Final answer
    x = 20,118.36

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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.