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Finding the Fourth Proportional to 8,940.75, 12,336.40 and 4,961.01

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Solution

The fourth proportional to 8,940.75, 12,336.40 and 4,961.01 is: 6,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.75 : 12,336.40 = 4,961.01 : x
  2. Step 2: Convert to fraction form
    8,940.75/12,336.40 = 4,961.01/x
  3. Step 3: Cross multiply
    8,940.75x = 12,336.40 × 4,961.01
  4. Step 4: Simplify right side
    8,940.75x = 61,201,056.23
  5. Step 5: Solve for x
    x = 61,201,056.23/8,940.75
  6. Step 6: Final answer
    x = 6,845.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.