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Finding the Fourth Proportional to 5,231.53, 7,219.67 and 2,873.67

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Solution

The fourth proportional to 5,231.53, 7,219.67 and 2,873.67 is: 3,965.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.53 : 7,219.67 = 2,873.67 : x
  2. Step 2: Convert to fraction form
    5,231.53/7,219.67 = 2,873.67/x
  3. Step 3: Cross multiply
    5,231.53x = 7,219.67 × 2,873.67
  4. Step 4: Simplify right side
    5,231.53x = 20,746,949.09
  5. Step 5: Solve for x
    x = 20,746,949.09/5,231.53
  6. Step 6: Final answer
    x = 3,965.75

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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.