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Finding the Fourth Proportional to 2,944.42, 4,415.75 and 969.68

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Solution

The fourth proportional to 2,944.42, 4,415.75 and 969.68 is: 1,454.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,944.42 : 4,415.75 = 969.68 : x
  2. Step 2: Convert to fraction form
    2,944.42/4,415.75 = 969.68/x
  3. Step 3: Cross multiply
    2,944.42x = 4,415.75 × 969.68
  4. Step 4: Simplify right side
    2,944.42x = 4,281,879.79
  5. Step 5: Solve for x
    x = 4,281,879.79/2,944.42
  6. Step 6: Final answer
    x = 1,454.24

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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.