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Finding the Fourth Proportional to 41,302.98, 61,954.40 and 11,721.11

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Solution

The fourth proportional to 41,302.98, 61,954.40 and 11,721.11 is: 17,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,302.98 : 61,954.40 = 11,721.11 : x
  2. Step 2: Convert to fraction form
    41,302.98/61,954.40 = 11,721.11/x
  3. Step 3: Cross multiply
    41,302.98x = 61,954.40 × 11,721.11
  4. Step 4: Simplify right side
    41,302.98x = 726,174,056.91
  5. Step 5: Solve for x
    x = 726,174,056.91/41,302.98
  6. Step 6: Final answer
    x = 17,581.64

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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.