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Finding the Fourth Proportional to 19,922.98, 29,879.49 and 5,880.22

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Solution

The fourth proportional to 19,922.98, 29,879.49 and 5,880.22 is: 8,818.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,922.98 : 29,879.49 = 5,880.22 : x
  2. Step 2: Convert to fraction form
    19,922.98/29,879.49 = 5,880.22/x
  3. Step 3: Cross multiply
    19,922.98x = 29,879.49 × 5,880.22
  4. Step 4: Simplify right side
    19,922.98x = 175,697,974.69
  5. Step 5: Solve for x
    x = 175,697,974.69/19,922.98
  6. Step 6: Final answer
    x = 8,818.86

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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.