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Finding the Fourth Proportional to 41,012.41, 61,526.81 and 12,936.81

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Solution

The fourth proportional to 41,012.41, 61,526.81 and 12,936.81 is: 19,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,012.41 : 61,526.81 = 12,936.81 : x
  2. Step 2: Convert to fraction form
    41,012.41/61,526.81 = 12,936.81/x
  3. Step 3: Cross multiply
    41,012.41x = 61,526.81 × 12,936.81
  4. Step 4: Simplify right side
    41,012.41x = 795,960,650.88
  5. Step 5: Solve for x
    x = 795,960,650.88/41,012.41
  6. Step 6: Final answer
    x = 19,407.80

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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.