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Finding the Fourth Proportional to 3,283.99, 4,921.73 and 1,335.13

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Solution

The fourth proportional to 3,283.99, 4,921.73 and 1,335.13 is: 2,000.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,283.99 : 4,921.73 = 1,335.13 : x
  2. Step 2: Convert to fraction form
    3,283.99/4,921.73 = 1,335.13/x
  3. Step 3: Cross multiply
    3,283.99x = 4,921.73 × 1,335.13
  4. Step 4: Simplify right side
    3,283.99x = 6,571,149.37
  5. Step 5: Solve for x
    x = 6,571,149.37/3,283.99
  6. Step 6: Final answer
    x = 2,000.97

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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.