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Finding the Fourth Proportional to 27,324.88, 40,959.95 and 10,661.98

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Solution

The fourth proportional to 27,324.88, 40,959.95 and 10,661.98 is: 15,982.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,324.88 : 40,959.95 = 10,661.98 : x
  2. Step 2: Convert to fraction form
    27,324.88/40,959.95 = 10,661.98/x
  3. Step 3: Cross multiply
    27,324.88x = 40,959.95 × 10,661.98
  4. Step 4: Simplify right side
    27,324.88x = 436,714,167.70
  5. Step 5: Solve for x
    x = 436,714,167.70/27,324.88
  6. Step 6: Final answer
    x = 15,982.29

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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.