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Finding the Fourth Proportional to 25,472.91, 38,209.38 and 7,942.71

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Solution

The fourth proportional to 25,472.91, 38,209.38 and 7,942.71 is: 11,914.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,472.91 : 38,209.38 = 7,942.71 : x
  2. Step 2: Convert to fraction form
    25,472.91/38,209.38 = 7,942.71/x
  3. Step 3: Cross multiply
    25,472.91x = 38,209.38 × 7,942.71
  4. Step 4: Simplify right side
    25,472.91x = 303,486,024.62
  5. Step 5: Solve for x
    x = 303,486,024.62/25,472.91
  6. Step 6: Final answer
    x = 11,914.07

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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.