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Finding the Fourth Proportional to 17,951.16, 26,949.72 and 12,065.88

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Solution

The fourth proportional to 17,951.16, 26,949.72 and 12,065.88 is: 18,114.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,951.16 : 26,949.72 = 12,065.88 : x
  2. Step 2: Convert to fraction form
    17,951.16/26,949.72 = 12,065.88/x
  3. Step 3: Cross multiply
    17,951.16x = 26,949.72 × 12,065.88
  4. Step 4: Simplify right side
    17,951.16x = 325,172,087.55
  5. Step 5: Solve for x
    x = 325,172,087.55/17,951.16
  6. Step 6: Final answer
    x = 18,114.27

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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.