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Finding the Fourth Proportional to 5,604.75, 7,734.55 and 3,086.85

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Solution

The fourth proportional to 5,604.75, 7,734.55 and 3,086.85 is: 4,259.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,604.75 : 7,734.55 = 3,086.85 : x
  2. Step 2: Convert to fraction form
    5,604.75/7,734.55 = 3,086.85/x
  3. Step 3: Cross multiply
    5,604.75x = 7,734.55 × 3,086.85
  4. Step 4: Simplify right side
    5,604.75x = 23,875,395.67
  5. Step 5: Solve for x
    x = 23,875,395.67/5,604.75
  6. Step 6: Final answer
    x = 4,259.85

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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.