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Finding the Fourth Proportional to 43,676.79, 65,523.56 and 14,086.68

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Solution

The fourth proportional to 43,676.79, 65,523.56 and 14,086.68 is: 21,132.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,676.79 : 65,523.56 = 14,086.68 : x
  2. Step 2: Convert to fraction form
    43,676.79/65,523.56 = 14,086.68/x
  3. Step 3: Cross multiply
    43,676.79x = 65,523.56 × 14,086.68
  4. Step 4: Simplify right side
    43,676.79x = 923,009,422.18
  5. Step 5: Solve for x
    x = 923,009,422.18/43,676.79
  6. Step 6: Final answer
    x = 21,132.72

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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.