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Finding the Fourth Proportional to 43,900.78, 65,793.74 and 17,623.96

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Solution

The fourth proportional to 43,900.78, 65,793.74 and 17,623.96 is: 26,412.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,900.78 : 65,793.74 = 17,623.96 : x
  2. Step 2: Convert to fraction form
    43,900.78/65,793.74 = 17,623.96/x
  3. Step 3: Cross multiply
    43,900.78x = 65,793.74 × 17,623.96
  4. Step 4: Simplify right side
    43,900.78x = 1,159,546,242.01
  5. Step 5: Solve for x
    x = 1,159,546,242.01/43,900.78
  6. Step 6: Final answer
    x = 26,412.88

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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.