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Finding the Fourth Proportional to 5,981.65, 8,250.47 and 5,183.56

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Solution

The fourth proportional to 5,981.65, 8,250.47 and 5,183.56 is: 7,149.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,981.65 : 8,250.47 = 5,183.56 : x
  2. Step 2: Convert to fraction form
    5,981.65/8,250.47 = 5,183.56/x
  3. Step 3: Cross multiply
    5,981.65x = 8,250.47 × 5,183.56
  4. Step 4: Simplify right side
    5,981.65x = 42,766,780.36
  5. Step 5: Solve for x
    x = 42,766,780.36/5,981.65
  6. Step 6: Final answer
    x = 7,149.67

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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.