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Finding the Fourth Proportional to 11,940.08, 17,910.09 and 3,175.00

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Solution

The fourth proportional to 11,940.08, 17,910.09 and 3,175.00 is: 4,762.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.08 : 17,910.09 = 3,175.00 : x
  2. Step 2: Convert to fraction form
    11,940.08/17,910.09 = 3,175.00/x
  3. Step 3: Cross multiply
    11,940.08x = 17,910.09 × 3,175.00
  4. Step 4: Simplify right side
    11,940.08x = 56,864,490.97
  5. Step 5: Solve for x
    x = 56,864,490.97/11,940.08
  6. Step 6: Final answer
    x = 4,762.49

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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.