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Finding the Fourth Proportional to 11,648.45, 17,460.11 and 5,718.43

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Solution

The fourth proportional to 11,648.45, 17,460.11 and 5,718.43 is: 8,571.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,648.45 : 17,460.11 = 5,718.43 : x
  2. Step 2: Convert to fraction form
    11,648.45/17,460.11 = 5,718.43/x
  3. Step 3: Cross multiply
    11,648.45x = 17,460.11 × 5,718.43
  4. Step 4: Simplify right side
    11,648.45x = 99,844,416.83
  5. Step 5: Solve for x
    x = 99,844,416.83/11,648.45
  6. Step 6: Final answer
    x = 8,571.48

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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.