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Finding the Fourth Proportional to 2,944.31, 4,415.99 and 752.93

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Solution

The fourth proportional to 2,944.31, 4,415.99 and 752.93 is: 1,129.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,944.31 : 4,415.99 = 752.93 : x
  2. Step 2: Convert to fraction form
    2,944.31/4,415.99 = 752.93/x
  3. Step 3: Cross multiply
    2,944.31x = 4,415.99 × 752.93
  4. Step 4: Simplify right side
    2,944.31x = 3,324,909.27
  5. Step 5: Solve for x
    x = 3,324,909.27/2,944.31
  6. Step 6: Final answer
    x = 1,129.27

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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.