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Finding the Fourth Proportional to 28,879.68, 43,241.22 and 14,999.52

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Solution

The fourth proportional to 28,879.68, 43,241.22 and 14,999.52 is: 22,458.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879.68 : 43,241.22 = 14,999.52 : x
  2. Step 2: Convert to fraction form
    28,879.68/43,241.22 = 14,999.52/x
  3. Step 3: Cross multiply
    28,879.68x = 43,241.22 × 14,999.52
  4. Step 4: Simplify right side
    28,879.68x = 648,597,544.21
  5. Step 5: Solve for x
    x = 648,597,544.21/28,879.68
  6. Step 6: Final answer
    x = 22,458.61

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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.