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Finding the Fourth Proportional to 41,305.64, 61,960.82 and 11,721.16

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Solution

The fourth proportional to 41,305.64, 61,960.82 and 11,721.16 is: 17,582.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,305.64 : 61,960.82 = 11,721.16 : x
  2. Step 2: Convert to fraction form
    41,305.64/61,960.82 = 11,721.16/x
  3. Step 3: Cross multiply
    41,305.64x = 61,960.82 × 11,721.16
  4. Step 4: Simplify right side
    41,305.64x = 726,252,684.95
  5. Step 5: Solve for x
    x = 726,252,684.95/41,305.64
  6. Step 6: Final answer
    x = 17,582.41

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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.