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Finding the Fourth Proportional to 17,813.94, 26,697.78 and 7,271.61

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Solution

The fourth proportional to 17,813.94, 26,697.78 and 7,271.61 is: 10,897.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,813.94 : 26,697.78 = 7,271.61 : x
  2. Step 2: Convert to fraction form
    17,813.94/26,697.78 = 7,271.61/x
  3. Step 3: Cross multiply
    17,813.94x = 26,697.78 × 7,271.61
  4. Step 4: Simplify right side
    17,813.94x = 194,135,844.03
  5. Step 5: Solve for x
    x = 194,135,844.03/17,813.94
  6. Step 6: Final answer
    x = 10,897.97

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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.