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Finding the Fourth Proportional to 28,819.42, 39,771.03 and 16,073.41

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Solution

The fourth proportional to 28,819.42, 39,771.03 and 16,073.41 is: 22,181.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,819.42 : 39,771.03 = 16,073.41 : x
  2. Step 2: Convert to fraction form
    28,819.42/39,771.03 = 16,073.41/x
  3. Step 3: Cross multiply
    28,819.42x = 39,771.03 × 16,073.41
  4. Step 4: Simplify right side
    28,819.42x = 639,256,082.97
  5. Step 5: Solve for x
    x = 639,256,082.97/28,819.42
  6. Step 6: Final answer
    x = 22,181.43

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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.