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Finding the Fourth Proportional to 19,559.80, 29,310.90 and 16,622.20

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Solution

The fourth proportional to 19,559.80, 29,310.90 and 16,622.20 is: 24,908.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,559.80 : 29,310.90 = 16,622.20 : x
  2. Step 2: Convert to fraction form
    19,559.80/29,310.90 = 16,622.20/x
  3. Step 3: Cross multiply
    19,559.80x = 29,310.90 × 16,622.20
  4. Step 4: Simplify right side
    19,559.80x = 487,211,641.98
  5. Step 5: Solve for x
    x = 487,211,641.98/19,559.80
  6. Step 6: Final answer
    x = 24,908.83

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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.