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Finding the Fourth Proportional to 2,441.28, 3,662.68 and 709.91

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Solution

The fourth proportional to 2,441.28, 3,662.68 and 709.91 is: 1,065.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,441.28 : 3,662.68 = 709.91 : x
  2. Step 2: Convert to fraction form
    2,441.28/3,662.68 = 709.91/x
  3. Step 3: Cross multiply
    2,441.28x = 3,662.68 × 709.91
  4. Step 4: Simplify right side
    2,441.28x = 2,600,173.16
  5. Step 5: Solve for x
    x = 2,600,173.16/2,441.28
  6. Step 6: Final answer
    x = 1,065.09

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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.