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Finding the Fourth Proportional to 43,663.92, 65,441.07 and 18,674.58

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Solution

The fourth proportional to 43,663.92, 65,441.07 and 18,674.58 is: 27,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,663.92 : 65,441.07 = 18,674.58 : x
  2. Step 2: Convert to fraction form
    43,663.92/65,441.07 = 18,674.58/x
  3. Step 3: Cross multiply
    43,663.92x = 65,441.07 × 18,674.58
  4. Step 4: Simplify right side
    43,663.92x = 1,222,084,497.00
  5. Step 5: Solve for x
    x = 1,222,084,497.00/43,663.92
  6. Step 6: Final answer
    x = 27,988.43

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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.