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Finding the Fourth Proportional to 25,245.70, 37,868.55 and 18,247.30

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Solution

The fourth proportional to 25,245.70, 37,868.55 and 18,247.30 is: 27,370.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,245.70 : 37,868.55 = 18,247.30 : x
  2. Step 2: Convert to fraction form
    25,245.70/37,868.55 = 18,247.30/x
  3. Step 3: Cross multiply
    25,245.70x = 37,868.55 × 18,247.30
  4. Step 4: Simplify right side
    25,245.70x = 690,998,792.42
  5. Step 5: Solve for x
    x = 690,998,792.42/25,245.70
  6. Step 6: Final answer
    x = 27,370.95

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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.