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Finding the Fourth Proportional to 18,506.88, 27,763.20 and 6,192

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Solution

The fourth proportional to 18,506.88, 27,763.20 and 6,192 is: 9,288.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,506.88 : 27,763.20 = 6,192 : x
  2. Step 2: Convert to fraction form
    18,506.88/27,763.20 = 6,192/x
  3. Step 3: Cross multiply
    18,506.88x = 27,763.20 × 6,192
  4. Step 4: Simplify right side
    18,506.88x = 171,909,734.40
  5. Step 5: Solve for x
    x = 171,909,734.40/18,506.88
  6. Step 6: Final answer
    x = 9,288.96

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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.