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Finding the Fourth Proportional to 15,960.72, 23,963.16 and 11,018.16

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Solution

The fourth proportional to 15,960.72, 23,963.16 and 11,018.16 is: 16,542.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,960.72 : 23,963.16 = 11,018.16 : x
  2. Step 2: Convert to fraction form
    15,960.72/23,963.16 = 11,018.16/x
  3. Step 3: Cross multiply
    15,960.72x = 23,963.16 × 11,018.16
  4. Step 4: Simplify right side
    15,960.72x = 264,029,930.99
  5. Step 5: Solve for x
    x = 264,029,930.99/15,960.72
  6. Step 6: Final answer
    x = 16,542.48

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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.