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Finding the Fourth Proportional to 2,703.73, 4,055.61 and 755.89

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Solution

The fourth proportional to 2,703.73, 4,055.61 and 755.89 is: 1,133.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,703.73 : 4,055.61 = 755.89 : x
  2. Step 2: Convert to fraction form
    2,703.73/4,055.61 = 755.89/x
  3. Step 3: Cross multiply
    2,703.73x = 4,055.61 × 755.89
  4. Step 4: Simplify right side
    2,703.73x = 3,065,595.04
  5. Step 5: Solve for x
    x = 3,065,595.04/2,703.73
  6. Step 6: Final answer
    x = 1,133.84

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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.