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Finding the Fourth Proportional to 5,226.66, 7,212.44 and 2,868.34

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Solution

The fourth proportional to 5,226.66, 7,212.44 and 2,868.34 is: 3,958.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.66 : 7,212.44 = 2,868.34 : x
  2. Step 2: Convert to fraction form
    5,226.66/7,212.44 = 2,868.34/x
  3. Step 3: Cross multiply
    5,226.66x = 7,212.44 × 2,868.34
  4. Step 4: Simplify right side
    5,226.66x = 20,687,730.15
  5. Step 5: Solve for x
    x = 20,687,730.15/5,226.66
  6. Step 6: Final answer
    x = 3,958.12

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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.