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Finding the Fourth Proportional to 40,322.80, 60,493.80 and 16,937.20

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Solution

The fourth proportional to 40,322.80, 60,493.80 and 16,937.20 is: 25,409.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,322.80 : 60,493.80 = 16,937.20 : x
  2. Step 2: Convert to fraction form
    40,322.80/60,493.80 = 16,937.20/x
  3. Step 3: Cross multiply
    40,322.80x = 60,493.80 × 16,937.20
  4. Step 4: Simplify right side
    40,322.80x = 1,024,595,589.36
  5. Step 5: Solve for x
    x = 1,024,595,589.36/40,322.80
  6. Step 6: Final answer
    x = 25,409.83

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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.