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Finding the Fourth Proportional to 18,531.15, 27,801.15 and 6,051.20

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Solution

The fourth proportional to 18,531.15, 27,801.15 and 6,051.20 is: 9,078.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531.15 : 27,801.15 = 6,051.20 : x
  2. Step 2: Convert to fraction form
    18,531.15/27,801.15 = 6,051.20/x
  3. Step 3: Cross multiply
    18,531.15x = 27,801.15 × 6,051.20
  4. Step 4: Simplify right side
    18,531.15x = 168,230,249.38
  5. Step 5: Solve for x
    x = 168,230,249.38/18,531.15
  6. Step 6: Final answer
    x = 9,078.24

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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.