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Finding the Fourth Proportional to 17,493.66, 26,191.08 and 11,638.98

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Solution

The fourth proportional to 17,493.66, 26,191.08 and 11,638.98 is: 17,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,493.66 : 26,191.08 = 11,638.98 : x
  2. Step 2: Convert to fraction form
    17,493.66/26,191.08 = 11,638.98/x
  3. Step 3: Cross multiply
    17,493.66x = 26,191.08 × 11,638.98
  4. Step 4: Simplify right side
    17,493.66x = 304,837,456.30
  5. Step 5: Solve for x
    x = 304,837,456.30/17,493.66
  6. Step 6: Final answer
    x = 17,425.60

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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.