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Finding the Fourth Proportional to 25,958.46, 38,914.29 and 9,314.55

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Solution

The fourth proportional to 25,958.46, 38,914.29 and 9,314.55 is: 13,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,958.46 : 38,914.29 = 9,314.55 : x
  2. Step 2: Convert to fraction form
    25,958.46/38,914.29 = 9,314.55/x
  3. Step 3: Cross multiply
    25,958.46x = 38,914.29 × 9,314.55
  4. Step 4: Simplify right side
    25,958.46x = 362,469,099.92
  5. Step 5: Solve for x
    x = 362,469,099.92/25,958.46
  6. Step 6: Final answer
    x = 13,963.43

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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.