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Finding the Fourth Proportional to 3,392.01, 4,680.44 and 1,899.99

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Solution

The fourth proportional to 3,392.01, 4,680.44 and 1,899.99 is: 2,621.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.01 : 4,680.44 = 1,899.99 : x
  2. Step 2: Convert to fraction form
    3,392.01/4,680.44 = 1,899.99/x
  3. Step 3: Cross multiply
    3,392.01x = 4,680.44 × 1,899.99
  4. Step 4: Simplify right side
    3,392.01x = 8,892,789.20
  5. Step 5: Solve for x
    x = 8,892,789.20/3,392.01
  6. Step 6: Final answer
    x = 2,621.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.