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Finding the Fourth Proportional to 43,954.52, 65,935.82 and 15,870.20

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Solution

The fourth proportional to 43,954.52, 65,935.82 and 15,870.20 is: 23,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,954.52 : 65,935.82 = 15,870.20 : x
  2. Step 2: Convert to fraction form
    43,954.52/65,935.82 = 15,870.20/x
  3. Step 3: Cross multiply
    43,954.52x = 65,935.82 × 15,870.20
  4. Step 4: Simplify right side
    43,954.52x = 1,046,414,360.56
  5. Step 5: Solve for x
    x = 1,046,414,360.56/43,954.52
  6. Step 6: Final answer
    x = 23,806.75

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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.