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Finding the Fourth Proportional to 43,911.52, 65,866.97 and 10,631.76

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Solution

The fourth proportional to 43,911.52, 65,866.97 and 10,631.76 is: 15,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,911.52 : 65,866.97 = 10,631.76 : x
  2. Step 2: Convert to fraction form
    43,911.52/65,866.97 = 10,631.76/x
  3. Step 3: Cross multiply
    43,911.52x = 65,866.97 × 10,631.76
  4. Step 4: Simplify right side
    43,911.52x = 700,281,596.55
  5. Step 5: Solve for x
    x = 700,281,596.55/43,911.52
  6. Step 6: Final answer
    x = 15,947.56

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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.