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Finding the Fourth Proportional to 2,932.94, 4,399.80 and 984.74

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Solution

The fourth proportional to 2,932.94, 4,399.80 and 984.74 is: 1,477.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,932.94 : 4,399.80 = 984.74 : x
  2. Step 2: Convert to fraction form
    2,932.94/4,399.80 = 984.74/x
  3. Step 3: Cross multiply
    2,932.94x = 4,399.80 × 984.74
  4. Step 4: Simplify right side
    2,932.94x = 4,332,659.05
  5. Step 5: Solve for x
    x = 4,332,659.05/2,932.94
  6. Step 6: Final answer
    x = 1,477.24

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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.