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Finding the Fourth Proportional to 25,513.44, 38,255.44 and 9,912.84

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Solution

The fourth proportional to 25,513.44, 38,255.44 and 9,912.84 is: 14,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,513.44 : 38,255.44 = 9,912.84 : x
  2. Step 2: Convert to fraction form
    25,513.44/38,255.44 = 9,912.84/x
  3. Step 3: Cross multiply
    25,513.44x = 38,255.44 × 9,912.84
  4. Step 4: Simplify right side
    25,513.44x = 379,220,055.85
  5. Step 5: Solve for x
    x = 379,220,055.85/25,513.44
  6. Step 6: Final answer
    x = 14,863.54

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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.