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Finding the Fourth Proportional to 16,906.40, 25,354.20 and 8,020.52

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Solution

The fourth proportional to 16,906.40, 25,354.20 and 8,020.52 is: 12,028.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,906.40 : 25,354.20 = 8,020.52 : x
  2. Step 2: Convert to fraction form
    16,906.40/25,354.20 = 8,020.52/x
  3. Step 3: Cross multiply
    16,906.40x = 25,354.20 × 8,020.52
  4. Step 4: Simplify right side
    16,906.40x = 203,353,868.18
  5. Step 5: Solve for x
    x = 203,353,868.18/16,906.40
  6. Step 6: Final answer
    x = 12,028.22

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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.