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Finding the Fourth Proportional to 27,196.90, 40,796.36 and 7,477

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Solution

The fourth proportional to 27,196.90, 40,796.36 and 7,477 is: 11,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,196.90 : 40,796.36 = 7,477 : x
  2. Step 2: Convert to fraction form
    27,196.90/40,796.36 = 7,477/x
  3. Step 3: Cross multiply
    27,196.90x = 40,796.36 × 7,477
  4. Step 4: Simplify right side
    27,196.90x = 305,034,383.72
  5. Step 5: Solve for x
    x = 305,034,383.72/27,196.90
  6. Step 6: Final answer
    x = 11,215.78

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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.