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Finding the Fourth Proportional to 40,507.48, 60,734.22 and 14,198.68

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Solution

The fourth proportional to 40,507.48, 60,734.22 and 14,198.68 is: 21,288.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,507.48 : 60,734.22 = 14,198.68 : x
  2. Step 2: Convert to fraction form
    40,507.48/60,734.22 = 14,198.68/x
  3. Step 3: Cross multiply
    40,507.48x = 60,734.22 × 14,198.68
  4. Step 4: Simplify right side
    40,507.48x = 862,345,754.83
  5. Step 5: Solve for x
    x = 862,345,754.83/40,507.48
  6. Step 6: Final answer
    x = 21,288.56

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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.