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Finding the Fourth Proportional to 28,234.44, 38,961.54 and 16,295.58

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Solution

The fourth proportional to 28,234.44, 38,961.54 and 16,295.58 is: 22,486.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,234.44 : 38,961.54 = 16,295.58 : x
  2. Step 2: Convert to fraction form
    28,234.44/38,961.54 = 16,295.58/x
  3. Step 3: Cross multiply
    28,234.44x = 38,961.54 × 16,295.58
  4. Step 4: Simplify right side
    28,234.44x = 634,900,891.99
  5. Step 5: Solve for x
    x = 634,900,891.99/28,234.44
  6. Step 6: Final answer
    x = 22,486.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.