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Finding the Fourth Proportional to 16,626.64, 24,920.12 and 7,729.96

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Solution

The fourth proportional to 16,626.64, 24,920.12 and 7,729.96 is: 11,585.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,626.64 : 24,920.12 = 7,729.96 : x
  2. Step 2: Convert to fraction form
    16,626.64/24,920.12 = 7,729.96/x
  3. Step 3: Cross multiply
    16,626.64x = 24,920.12 × 7,729.96
  4. Step 4: Simplify right side
    16,626.64x = 192,631,530.80
  5. Step 5: Solve for x
    x = 192,631,530.80/16,626.64
  6. Step 6: Final answer
    x = 11,585.72

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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.