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Finding the Fourth Proportional to 5,107.02, 7,659.99 and 1,644

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Solution

The fourth proportional to 5,107.02, 7,659.99 and 1,644 is: 2,465.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.02 : 7,659.99 = 1,644 : x
  2. Step 2: Convert to fraction form
    5,107.02/7,659.99 = 1,644/x
  3. Step 3: Cross multiply
    5,107.02x = 7,659.99 × 1,644
  4. Step 4: Simplify right side
    5,107.02x = 12,593,023.56
  5. Step 5: Solve for x
    x = 12,593,023.56/5,107.02
  6. Step 6: Final answer
    x = 2,465.83

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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.