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Finding the Fourth Proportional to 16,372.80, 24,559.20 and 9,439.20

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Solution

The fourth proportional to 16,372.80, 24,559.20 and 9,439.20 is: 14,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,372.80 : 24,559.20 = 9,439.20 : x
  2. Step 2: Convert to fraction form
    16,372.80/24,559.20 = 9,439.20/x
  3. Step 3: Cross multiply
    16,372.80x = 24,559.20 × 9,439.20
  4. Step 4: Simplify right side
    16,372.80x = 231,819,200.64
  5. Step 5: Solve for x
    x = 231,819,200.64/16,372.80
  6. Step 6: Final answer
    x = 14,158.80

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1.5x scale

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.