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Finding the Fourth Proportional to 11,493.40, 17,243.10 and 3,702.40

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Solution

The fourth proportional to 11,493.40, 17,243.10 and 3,702.40 is: 5,554.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,493.40 : 17,243.10 = 3,702.40 : x
  2. Step 2: Convert to fraction form
    11,493.40/17,243.10 = 3,702.40/x
  3. Step 3: Cross multiply
    11,493.40x = 17,243.10 × 3,702.40
  4. Step 4: Simplify right side
    11,493.40x = 63,840,853.44
  5. Step 5: Solve for x
    x = 63,840,853.44/11,493.40
  6. Step 6: Final answer
    x = 5,554.57

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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.