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Finding the Fourth Proportional to 16,540.80, 24,811.20 and 9,542.40

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Solution

The fourth proportional to 16,540.80, 24,811.20 and 9,542.40 is: 14,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,540.80 : 24,811.20 = 9,542.40 : x
  2. Step 2: Convert to fraction form
    16,540.80/24,811.20 = 9,542.40/x
  3. Step 3: Cross multiply
    16,540.80x = 24,811.20 × 9,542.40
  4. Step 4: Simplify right side
    16,540.80x = 236,758,394.88
  5. Step 5: Solve for x
    x = 236,758,394.88/16,540.80
  6. Step 6: Final answer
    x = 14,313.60

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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.