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Finding the Fourth Proportional to 12,467.84, 18,614.98 and 11,223.68

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Solution

The fourth proportional to 12,467.84, 18,614.98 and 11,223.68 is: 16,757.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,467.84 : 18,614.98 = 11,223.68 : x
  2. Step 2: Convert to fraction form
    12,467.84/18,614.98 = 11,223.68/x
  3. Step 3: Cross multiply
    12,467.84x = 18,614.98 × 11,223.68
  4. Step 4: Simplify right side
    12,467.84x = 208,928,578.73
  5. Step 5: Solve for x
    x = 208,928,578.73/12,467.84
  6. Step 6: Final answer
    x = 16,757.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.