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Finding the Fourth Proportional to 2,165.62, 3,247.29 and 704.59

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Solution

The fourth proportional to 2,165.62, 3,247.29 and 704.59 is: 1,056.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.62 : 3,247.29 = 704.59 : x
  2. Step 2: Convert to fraction form
    2,165.62/3,247.29 = 704.59/x
  3. Step 3: Cross multiply
    2,165.62x = 3,247.29 × 704.59
  4. Step 4: Simplify right side
    2,165.62x = 2,288,008.06
  5. Step 5: Solve for x
    x = 2,288,008.06/2,165.62
  6. Step 6: Final answer
    x = 1,056.51

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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.