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Finding the Fourth Proportional to 3,754.59, 5,629.50 and 1,998.51

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Solution

The fourth proportional to 3,754.59, 5,629.50 and 1,998.51 is: 2,996.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.59 : 5,629.50 = 1,998.51 : x
  2. Step 2: Convert to fraction form
    3,754.59/5,629.50 = 1,998.51/x
  3. Step 3: Cross multiply
    3,754.59x = 5,629.50 × 1,998.51
  4. Step 4: Simplify right side
    3,754.59x = 11,250,590.93
  5. Step 5: Solve for x
    x = 11,250,590.93/3,754.59
  6. Step 6: Final answer
    x = 2,996.49

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1.5x scale

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.