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Finding the Fourth Proportional to 2,685.51, 4,028.49 and 737.73

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Solution

The fourth proportional to 2,685.51, 4,028.49 and 737.73 is: 1,106.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.51 : 4,028.49 = 737.73 : x
  2. Step 2: Convert to fraction form
    2,685.51/4,028.49 = 737.73/x
  3. Step 3: Cross multiply
    2,685.51x = 4,028.49 × 737.73
  4. Step 4: Simplify right side
    2,685.51x = 2,971,937.93
  5. Step 5: Solve for x
    x = 2,971,937.93/2,685.51
  6. Step 6: Final answer
    x = 1,106.66

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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.