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Finding the Fourth Proportional to 43,790.50, 60,431.13 and 23,918.50

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Solution

The fourth proportional to 43,790.50, 60,431.13 and 23,918.50 is: 33,007.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,790.50 : 60,431.13 = 23,918.50 : x
  2. Step 2: Convert to fraction form
    43,790.50/60,431.13 = 23,918.50/x
  3. Step 3: Cross multiply
    43,790.50x = 60,431.13 × 23,918.50
  4. Step 4: Simplify right side
    43,790.50x = 1,445,421,982.91
  5. Step 5: Solve for x
    x = 1,445,421,982.91/43,790.50
  6. Step 6: Final answer
    x = 33,007.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.