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Finding the Fourth Proportional to 25,388.44, 38,082.66 and 6,920.44

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Solution

The fourth proportional to 25,388.44, 38,082.66 and 6,920.44 is: 10,380.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,388.44 : 38,082.66 = 6,920.44 : x
  2. Step 2: Convert to fraction form
    25,388.44/38,082.66 = 6,920.44/x
  3. Step 3: Cross multiply
    25,388.44x = 38,082.66 × 6,920.44
  4. Step 4: Simplify right side
    25,388.44x = 263,548,642.41
  5. Step 5: Solve for x
    x = 263,548,642.41/25,388.44
  6. Step 6: Final answer
    x = 10,380.66

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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.