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Finding the Fourth Proportional to 16,584.20, 24,843.90 and 9,990.80

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Solution

The fourth proportional to 16,584.20, 24,843.90 and 9,990.80 is: 14,966.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,584.20 : 24,843.90 = 9,990.80 : x
  2. Step 2: Convert to fraction form
    16,584.20/24,843.90 = 9,990.80/x
  3. Step 3: Cross multiply
    16,584.20x = 24,843.90 × 9,990.80
  4. Step 4: Simplify right side
    16,584.20x = 248,210,436.12
  5. Step 5: Solve for x
    x = 248,210,436.12/16,584.20
  6. Step 6: Final answer
    x = 14,966.68

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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.