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Finding the Fourth Proportional to 3,798.86, 5,235.32 and 2,734.83

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Solution

The fourth proportional to 3,798.86, 5,235.32 and 2,734.83 is: 3,768.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,798.86 : 5,235.32 = 2,734.83 : x
  2. Step 2: Convert to fraction form
    3,798.86/5,235.32 = 2,734.83/x
  3. Step 3: Cross multiply
    3,798.86x = 5,235.32 × 2,734.83
  4. Step 4: Simplify right side
    3,798.86x = 14,317,717.03
  5. Step 5: Solve for x
    x = 14,317,717.03/3,798.86
  6. Step 6: Final answer
    x = 3,768.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.