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Finding the Fourth Proportional to 17,940.61, 26,911.05 and 6,253.84

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Solution

The fourth proportional to 17,940.61, 26,911.05 and 6,253.84 is: 9,380.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,940.61 : 26,911.05 = 6,253.84 : x
  2. Step 2: Convert to fraction form
    17,940.61/26,911.05 = 6,253.84/x
  3. Step 3: Cross multiply
    17,940.61x = 26,911.05 × 6,253.84
  4. Step 4: Simplify right side
    17,940.61x = 168,297,400.93
  5. Step 5: Solve for x
    x = 168,297,400.93/17,940.61
  6. Step 6: Final answer
    x = 9,380.81

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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.