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Finding the Fourth Proportional to 2,703.75, 4,054.30 and 1,059.86

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Solution

The fourth proportional to 2,703.75, 4,054.30 and 1,059.86 is: 1,589.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,703.75 : 4,054.30 = 1,059.86 : x
  2. Step 2: Convert to fraction form
    2,703.75/4,054.30 = 1,059.86/x
  3. Step 3: Cross multiply
    2,703.75x = 4,054.30 × 1,059.86
  4. Step 4: Simplify right side
    2,703.75x = 4,296,967.48
  5. Step 5: Solve for x
    x = 4,296,967.48/2,703.75
  6. Step 6: Final answer
    x = 1,589.26

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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.