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Finding the Fourth Proportional to 19,993.32, 29,951.82 and 11,201.64

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Solution

The fourth proportional to 19,993.32, 29,951.82 and 11,201.64 is: 16,781.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.32 : 29,951.82 = 11,201.64 : x
  2. Step 2: Convert to fraction form
    19,993.32/29,951.82 = 11,201.64/x
  3. Step 3: Cross multiply
    19,993.32x = 29,951.82 × 11,201.64
  4. Step 4: Simplify right side
    19,993.32x = 335,509,504.98
  5. Step 5: Solve for x
    x = 335,509,504.98/19,993.32
  6. Step 6: Final answer
    x = 16,781.08

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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.