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Finding the Fourth Proportional to 40,998.77, 61,471.82 and 17,299.83

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Solution

The fourth proportional to 40,998.77, 61,471.82 and 17,299.83 is: 25,938.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,998.77 : 61,471.82 = 17,299.83 : x
  2. Step 2: Convert to fraction form
    40,998.77/61,471.82 = 17,299.83/x
  3. Step 3: Cross multiply
    40,998.77x = 61,471.82 × 17,299.83
  4. Step 4: Simplify right side
    40,998.77x = 1,063,452,035.79
  5. Step 5: Solve for x
    x = 1,063,452,035.79/40,998.77
  6. Step 6: Final answer
    x = 25,938.64

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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.