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Finding the Fourth Proportional to 25,923.42, 38,892.69 and 8,392.86

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Solution

The fourth proportional to 25,923.42, 38,892.69 and 8,392.86 is: 12,591.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,923.42 : 38,892.69 = 8,392.86 : x
  2. Step 2: Convert to fraction form
    25,923.42/38,892.69 = 8,392.86/x
  3. Step 3: Cross multiply
    25,923.42x = 38,892.69 × 8,392.86
  4. Step 4: Simplify right side
    25,923.42x = 326,420,902.19
  5. Step 5: Solve for x
    x = 326,420,902.19/25,923.42
  6. Step 6: Final answer
    x = 12,591.74

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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.