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Finding the Fourth Proportional to 28,596.03, 42,879.42 and 11,951.52

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Solution

The fourth proportional to 28,596.03, 42,879.42 and 11,951.52 is: 17,921.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,596.03 : 42,879.42 = 11,951.52 : x
  2. Step 2: Convert to fraction form
    28,596.03/42,879.42 = 11,951.52/x
  3. Step 3: Cross multiply
    28,596.03x = 42,879.42 × 11,951.52
  4. Step 4: Simplify right side
    28,596.03x = 512,474,245.72
  5. Step 5: Solve for x
    x = 512,474,245.72/28,596.03
  6. Step 6: Final answer
    x = 17,921.17

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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.