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Finding the Fourth Proportional to 17,957.88, 26,936.96 and 6,271.11

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Solution

The fourth proportional to 17,957.88, 26,936.96 and 6,271.11 is: 9,406.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,957.88 : 26,936.96 = 6,271.11 : x
  2. Step 2: Convert to fraction form
    17,957.88/26,936.96 = 6,271.11/x
  3. Step 3: Cross multiply
    17,957.88x = 26,936.96 × 6,271.11
  4. Step 4: Simplify right side
    17,957.88x = 168,924,607.87
  5. Step 5: Solve for x
    x = 168,924,607.87/17,957.88
  6. Step 6: Final answer
    x = 9,406.71

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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.