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Finding the Fourth Proportional to 4,821.93, 7,221.21 and 3,336.99

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Solution

The fourth proportional to 4,821.93, 7,221.21 and 3,336.99 is: 4,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.93 : 7,221.21 = 3,336.99 : x
  2. Step 2: Convert to fraction form
    4,821.93/7,221.21 = 3,336.99/x
  3. Step 3: Cross multiply
    4,821.93x = 7,221.21 × 3,336.99
  4. Step 4: Simplify right side
    4,821.93x = 24,097,105.56
  5. Step 5: Solve for x
    x = 24,097,105.56/4,821.93
  6. Step 6: Final answer
    x = 4,997.40

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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.