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Finding the Fourth Proportional to 18,636.42, 27,954.54 and 17,702.04

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Solution

The fourth proportional to 18,636.42, 27,954.54 and 17,702.04 is: 26,552.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,636.42 : 27,954.54 = 17,702.04 : x
  2. Step 2: Convert to fraction form
    18,636.42/27,954.54 = 17,702.04/x
  3. Step 3: Cross multiply
    18,636.42x = 27,954.54 × 17,702.04
  4. Step 4: Simplify right side
    18,636.42x = 494,852,385.26
  5. Step 5: Solve for x
    x = 494,852,385.26/18,636.42
  6. Step 6: Final answer
    x = 26,552.97

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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.