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Finding the Fourth Proportional to 8,392.41, 12,578.09 and 7,349.94

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Solution

The fourth proportional to 8,392.41, 12,578.09 and 7,349.94 is: 11,015.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.41 : 12,578.09 = 7,349.94 : x
  2. Step 2: Convert to fraction form
    8,392.41/12,578.09 = 7,349.94/x
  3. Step 3: Cross multiply
    8,392.41x = 12,578.09 × 7,349.94
  4. Step 4: Simplify right side
    8,392.41x = 92,448,170.06
  5. Step 5: Solve for x
    x = 92,448,170.06/8,392.41
  6. Step 6: Final answer
    x = 11,015.69

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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.