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Finding the Fourth Proportional to 8,015.46, 12,019.74 and 2,750.96

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Solution

The fourth proportional to 8,015.46, 12,019.74 and 2,750.96 is: 4,125.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,015.46 : 12,019.74 = 2,750.96 : x
  2. Step 2: Convert to fraction form
    8,015.46/12,019.74 = 2,750.96/x
  3. Step 3: Cross multiply
    8,015.46x = 12,019.74 × 2,750.96
  4. Step 4: Simplify right side
    8,015.46x = 33,065,859.16
  5. Step 5: Solve for x
    x = 33,065,859.16/8,015.46
  6. Step 6: Final answer
    x = 4,125.26

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1.5x scale

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.