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Finding the Fourth Proportional to 19,906.20, 29,816.10 and 16,018.20

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Solution

The fourth proportional to 19,906.20, 29,816.10 and 16,018.20 is: 23,992.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,906.20 : 29,816.10 = 16,018.20 : x
  2. Step 2: Convert to fraction form
    19,906.20/29,816.10 = 16,018.20/x
  3. Step 3: Cross multiply
    19,906.20x = 29,816.10 × 16,018.20
  4. Step 4: Simplify right side
    19,906.20x = 477,600,253.02
  5. Step 5: Solve for x
    x = 477,600,253.02/19,906.20
  6. Step 6: Final answer
    x = 23,992.54

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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.