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Finding the Fourth Proportional to 25,481.79, 38,224.58 and 7,951.50

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Solution

The fourth proportional to 25,481.79, 38,224.58 and 7,951.50 is: 11,927.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,481.79 : 38,224.58 = 7,951.50 : x
  2. Step 2: Convert to fraction form
    25,481.79/38,224.58 = 7,951.50/x
  3. Step 3: Cross multiply
    25,481.79x = 38,224.58 × 7,951.50
  4. Step 4: Simplify right side
    25,481.79x = 303,942,708.11
  5. Step 5: Solve for x
    x = 303,942,708.11/25,481.79
  6. Step 6: Final answer
    x = 11,927.84

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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.