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Finding the Fourth Proportional to 47,999.82, 72,014.94 and 19,933.32

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Solution

The fourth proportional to 47,999.82, 72,014.94 and 19,933.32 is: 29,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,999.82 : 72,014.94 = 19,933.32 : x
  2. Step 2: Convert to fraction form
    47,999.82/72,014.94 = 19,933.32/x
  3. Step 3: Cross multiply
    47,999.82x = 72,014.94 × 19,933.32
  4. Step 4: Simplify right side
    47,999.82x = 1,435,496,843.80
  5. Step 5: Solve for x
    x = 1,435,496,843.80/47,999.82
  6. Step 6: Final answer
    x = 29,906.30

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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.