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Finding the Fourth Proportional to 43,811.70, 65,717.55 and 43,350.90

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Solution

The fourth proportional to 43,811.70, 65,717.55 and 43,350.90 is: 65,026.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,811.70 : 65,717.55 = 43,350.90 : x
  2. Step 2: Convert to fraction form
    43,811.70/65,717.55 = 43,350.90/x
  3. Step 3: Cross multiply
    43,811.70x = 65,717.55 × 43,350.90
  4. Step 4: Simplify right side
    43,811.70x = 2,848,914,938.30
  5. Step 5: Solve for x
    x = 2,848,914,938.30/43,811.70
  6. Step 6: Final answer
    x = 65,026.35

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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.