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Finding the Fourth Proportional to 16,616.80, 24,963.60 and 11,432.80

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Solution

The fourth proportional to 16,616.80, 24,963.60 and 11,432.80 is: 17,175.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,616.80 : 24,963.60 = 11,432.80 : x
  2. Step 2: Convert to fraction form
    16,616.80/24,963.60 = 11,432.80/x
  3. Step 3: Cross multiply
    16,616.80x = 24,963.60 × 11,432.80
  4. Step 4: Simplify right side
    16,616.80x = 285,403,846.08
  5. Step 5: Solve for x
    x = 285,403,846.08/16,616.80
  6. Step 6: Final answer
    x = 17,175.62

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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.