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Finding the Fourth Proportional to 2,833.56, 4,250.61 and 984.80

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Solution

The fourth proportional to 2,833.56, 4,250.61 and 984.80 is: 1,477.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,833.56 : 4,250.61 = 984.80 : x
  2. Step 2: Convert to fraction form
    2,833.56/4,250.61 = 984.80/x
  3. Step 3: Cross multiply
    2,833.56x = 4,250.61 × 984.80
  4. Step 4: Simplify right side
    2,833.56x = 4,185,979.47
  5. Step 5: Solve for x
    x = 4,185,979.47/2,833.56
  6. Step 6: Final answer
    x = 1,477.29

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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.