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Finding the Fourth Proportional to 43,379.70, 65,043.15 and 17,052.90

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Solution

The fourth proportional to 43,379.70, 65,043.15 and 17,052.90 is: 25,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,379.70 : 65,043.15 = 17,052.90 : x
  2. Step 2: Convert to fraction form
    43,379.70/65,043.15 = 17,052.90/x
  3. Step 3: Cross multiply
    43,379.70x = 65,043.15 × 17,052.90
  4. Step 4: Simplify right side
    43,379.70x = 1,109,174,332.64
  5. Step 5: Solve for x
    x = 1,109,174,332.64/43,379.70
  6. Step 6: Final answer
    x = 25,568.97

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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.