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Finding the Fourth Proportional to 43,871.70, 65,806.97 and 10,591.59

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Solution

The fourth proportional to 43,871.70, 65,806.97 and 10,591.59 is: 15,887.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,871.70 : 65,806.97 = 10,591.59 : x
  2. Step 2: Convert to fraction form
    43,871.70/65,806.97 = 10,591.59/x
  3. Step 3: Cross multiply
    43,871.70x = 65,806.97 × 10,591.59
  4. Step 4: Simplify right side
    43,871.70x = 697,000,392.42
  5. Step 5: Solve for x
    x = 697,000,392.42/43,871.70
  6. Step 6: Final answer
    x = 15,887.24

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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.