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Finding the Fourth Proportional to 2,699.70, 3,723.96 and 1,704.60

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Solution

The fourth proportional to 2,699.70, 3,723.96 and 1,704.60 is: 2,351.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.70 : 3,723.96 = 1,704.60 : x
  2. Step 2: Convert to fraction form
    2,699.70/3,723.96 = 1,704.60/x
  3. Step 3: Cross multiply
    2,699.70x = 3,723.96 × 1,704.60
  4. Step 4: Simplify right side
    2,699.70x = 6,347,862.22
  5. Step 5: Solve for x
    x = 6,347,862.22/2,699.70
  6. Step 6: Final answer
    x = 2,351.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.