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Finding the Fourth Proportional to 27,266.80, 40,876.20 and 18,473.20

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Solution

The fourth proportional to 27,266.80, 40,876.20 and 18,473.20 is: 27,693.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,266.80 : 40,876.20 = 18,473.20 : x
  2. Step 2: Convert to fraction form
    27,266.80/40,876.20 = 18,473.20/x
  3. Step 3: Cross multiply
    27,266.80x = 40,876.20 × 18,473.20
  4. Step 4: Simplify right side
    27,266.80x = 755,114,217.84
  5. Step 5: Solve for x
    x = 755,114,217.84/27,266.80
  6. Step 6: Final answer
    x = 27,693.54

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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.