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Finding the Fourth Proportional to 40,498.68, 60,747.66 and 12,796.68

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Solution

The fourth proportional to 40,498.68, 60,747.66 and 12,796.68 is: 19,194.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,498.68 : 60,747.66 = 12,796.68 : x
  2. Step 2: Convert to fraction form
    40,498.68/60,747.66 = 12,796.68/x
  3. Step 3: Cross multiply
    40,498.68x = 60,747.66 × 12,796.68
  4. Step 4: Simplify right side
    40,498.68x = 777,368,365.77
  5. Step 5: Solve for x
    x = 777,368,365.77/40,498.68
  6. Step 6: Final answer
    x = 19,194.91

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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.