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Finding the Fourth Proportional to 1,694.68, 2,535 and 1,591

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Solution

The fourth proportional to 1,694.68, 2,535 and 1,591 is: 2,379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,694.68 : 2,535 = 1,591 : x
  2. Step 2: Convert to fraction form
    1,694.68/2,535 = 1,591/x
  3. Step 3: Cross multiply
    1,694.68x = 2,535 × 1,591
  4. Step 4: Simplify right side
    1,694.68x = 4,033,185
  5. Step 5: Solve for x
    x = 4,033,185/1,694.68
  6. Step 6: Final answer
    x = 2,379.91

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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.