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Finding the Fourth Proportional to 40,012.59, 60,021.93 and 11,930.49

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Solution

The fourth proportional to 40,012.59, 60,021.93 and 11,930.49 is: 17,896.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,012.59 : 60,021.93 = 11,930.49 : x
  2. Step 2: Convert to fraction form
    40,012.59/60,021.93 = 11,930.49/x
  3. Step 3: Cross multiply
    40,012.59x = 60,021.93 × 11,930.49
  4. Step 4: Simplify right side
    40,012.59x = 716,091,035.65
  5. Step 5: Solve for x
    x = 716,091,035.65/40,012.59
  6. Step 6: Final answer
    x = 17,896.64

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.