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Finding the Fourth Proportional to 8,082.99, 12,124.35 and 3,922.29

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Solution

The fourth proportional to 8,082.99, 12,124.35 and 3,922.29 is: 5,883.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,082.99 : 12,124.35 = 3,922.29 : x
  2. Step 2: Convert to fraction form
    8,082.99/12,124.35 = 3,922.29/x
  3. Step 3: Cross multiply
    8,082.99x = 12,124.35 × 3,922.29
  4. Step 4: Simplify right side
    8,082.99x = 47,555,216.76
  5. Step 5: Solve for x
    x = 47,555,216.76/8,082.99
  6. Step 6: Final answer
    x = 5,883.37

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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.