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Finding the Fourth Proportional to 2,699.68, 4,049.43 and 944.68

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Solution

The fourth proportional to 2,699.68, 4,049.43 and 944.68 is: 1,416.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.68 : 4,049.43 = 944.68 : x
  2. Step 2: Convert to fraction form
    2,699.68/4,049.43 = 944.68/x
  3. Step 3: Cross multiply
    2,699.68x = 4,049.43 × 944.68
  4. Step 4: Simplify right side
    2,699.68x = 3,825,410.81
  5. Step 5: Solve for x
    x = 3,825,410.81/2,699.68
  6. Step 6: Final answer
    x = 1,416.99

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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.