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Finding the Fourth Proportional to 39,793.40, 59,697.30 and 16,422.20

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Solution

The fourth proportional to 39,793.40, 59,697.30 and 16,422.20 is: 24,636.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,793.40 : 59,697.30 = 16,422.20 : x
  2. Step 2: Convert to fraction form
    39,793.40/59,697.30 = 16,422.20/x
  3. Step 3: Cross multiply
    39,793.40x = 59,697.30 × 16,422.20
  4. Step 4: Simplify right side
    39,793.40x = 980,361,000.06
  5. Step 5: Solve for x
    x = 980,361,000.06/39,793.40
  6. Step 6: Final answer
    x = 24,636.27

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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.