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Finding the Fourth Proportional to 43,891.68, 65,837.44 and 15,815.44

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Solution

The fourth proportional to 43,891.68, 65,837.44 and 15,815.44 is: 23,723.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,891.68 : 65,837.44 = 15,815.44 : x
  2. Step 2: Convert to fraction form
    43,891.68/65,837.44 = 15,815.44/x
  3. Step 3: Cross multiply
    43,891.68x = 65,837.44 × 15,815.44
  4. Step 4: Simplify right side
    43,891.68x = 1,041,248,082.07
  5. Step 5: Solve for x
    x = 1,041,248,082.07/43,891.68
  6. Step 6: Final answer
    x = 23,723.13

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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.