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Finding the Fourth Proportional to 17,853.88, 26,731.02 and 13,458.04

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Solution

The fourth proportional to 17,853.88, 26,731.02 and 13,458.04 is: 20,149.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,853.88 : 26,731.02 = 13,458.04 : x
  2. Step 2: Convert to fraction form
    17,853.88/26,731.02 = 13,458.04/x
  3. Step 3: Cross multiply
    17,853.88x = 26,731.02 × 13,458.04
  4. Step 4: Simplify right side
    17,853.88x = 359,747,136.40
  5. Step 5: Solve for x
    x = 359,747,136.40/17,853.88
  6. Step 6: Final answer
    x = 20,149.52

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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.