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Finding the Fourth Proportional to 43,408.70, 65,134.65 and 17,114.30

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Solution

The fourth proportional to 43,408.70, 65,134.65 and 17,114.30 is: 25,679.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,408.70 : 65,134.65 = 17,114.30 : x
  2. Step 2: Convert to fraction form
    43,408.70/65,134.65 = 17,114.30/x
  3. Step 3: Cross multiply
    43,408.70x = 65,134.65 × 17,114.30
  4. Step 4: Simplify right side
    43,408.70x = 1,114,733,940.50
  5. Step 5: Solve for x
    x = 1,114,733,940.50/43,408.70
  6. Step 6: Final answer
    x = 25,679.97

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1.5x scale

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.