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Finding the Fourth Proportional to 17,940.58, 26,960.04 and 16,921.55

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Solution

The fourth proportional to 17,940.58, 26,960.04 and 16,921.55 is: 25,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,940.58 : 26,960.04 = 16,921.55 : x
  2. Step 2: Convert to fraction form
    17,940.58/26,960.04 = 16,921.55/x
  3. Step 3: Cross multiply
    17,940.58x = 26,960.04 × 16,921.55
  4. Step 4: Simplify right side
    17,940.58x = 456,205,732.26
  5. Step 5: Solve for x
    x = 456,205,732.26/17,940.58
  6. Step 6: Final answer
    x = 25,428.71

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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.