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Finding the Fourth Proportional to 2,703.42, 4,055.22 and 755.52

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Solution

The fourth proportional to 2,703.42, 4,055.22 and 755.52 is: 1,133.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,703.42 : 4,055.22 = 755.52 : x
  2. Step 2: Convert to fraction form
    2,703.42/4,055.22 = 755.52/x
  3. Step 3: Cross multiply
    2,703.42x = 4,055.22 × 755.52
  4. Step 4: Simplify right side
    2,703.42x = 3,063,799.81
  5. Step 5: Solve for x
    x = 3,063,799.81/2,703.42
  6. Step 6: Final answer
    x = 1,133.31

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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.