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Finding the Fourth Proportional to 8,632.53, 12,940.08 and 3,364.25

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Solution

The fourth proportional to 8,632.53, 12,940.08 and 3,364.25 is: 5,042.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.53 : 12,940.08 = 3,364.25 : x
  2. Step 2: Convert to fraction form
    8,632.53/12,940.08 = 3,364.25/x
  3. Step 3: Cross multiply
    8,632.53x = 12,940.08 × 3,364.25
  4. Step 4: Simplify right side
    8,632.53x = 43,533,599.44
  5. Step 5: Solve for x
    x = 43,533,599.44/8,632.53
  6. Step 6: Final answer
    x = 5,042.97

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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.