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Finding the Fourth Proportional to 43,781.99, 65,661.01 and 15,696.82

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Solution

The fourth proportional to 43,781.99, 65,661.01 and 15,696.82 is: 23,540.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,781.99 : 65,661.01 = 15,696.82 : x
  2. Step 2: Convert to fraction form
    43,781.99/65,661.01 = 15,696.82/x
  3. Step 3: Cross multiply
    43,781.99x = 65,661.01 × 15,696.82
  4. Step 4: Simplify right side
    43,781.99x = 1,030,669,094.23
  5. Step 5: Solve for x
    x = 1,030,669,094.23/43,781.99
  6. Step 6: Final answer
    x = 23,540.94

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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.