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Finding the Fourth Proportional to 16,246.81, 22,420.67 and 8,794.81

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Solution

The fourth proportional to 16,246.81, 22,420.67 and 8,794.81 is: 12,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,246.81 : 22,420.67 = 8,794.81 : x
  2. Step 2: Convert to fraction form
    16,246.81/22,420.67 = 8,794.81/x
  3. Step 3: Cross multiply
    16,246.81x = 22,420.67 × 8,794.81
  4. Step 4: Simplify right side
    16,246.81x = 197,185,532.72
  5. Step 5: Solve for x
    x = 197,185,532.72/16,246.81
  6. Step 6: Final answer
    x = 12,136.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.