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Finding the Fourth Proportional to 25,197.91, 37,787.86 and 8,327.80

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Solution

The fourth proportional to 25,197.91, 37,787.86 and 8,327.80 is: 12,488.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,197.91 : 37,787.86 = 8,327.80 : x
  2. Step 2: Convert to fraction form
    25,197.91/37,787.86 = 8,327.80/x
  3. Step 3: Cross multiply
    25,197.91x = 37,787.86 × 8,327.80
  4. Step 4: Simplify right side
    25,197.91x = 314,689,736.01
  5. Step 5: Solve for x
    x = 314,689,736.01/25,197.91
  6. Step 6: Final answer
    x = 12,488.72

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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.