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Finding the Fourth Proportional to 28,094.99, 38,771.85 and 16,771.05

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Solution

The fourth proportional to 28,094.99, 38,771.85 and 16,771.05 is: 23,144.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,094.99 : 38,771.85 = 16,771.05 : x
  2. Step 2: Convert to fraction form
    28,094.99/38,771.85 = 16,771.05/x
  3. Step 3: Cross multiply
    28,094.99x = 38,771.85 × 16,771.05
  4. Step 4: Simplify right side
    28,094.99x = 650,244,634.94
  5. Step 5: Solve for x
    x = 650,244,634.94/28,094.99
  6. Step 6: Final answer
    x = 23,144.51

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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.