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Finding the Fourth Proportional to 12,233.80, 16,882.50 and 6,644.80

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Solution

The fourth proportional to 12,233.80, 16,882.50 and 6,644.80 is: 9,169.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,233.80 : 16,882.50 = 6,644.80 : x
  2. Step 2: Convert to fraction form
    12,233.80/16,882.50 = 6,644.80/x
  3. Step 3: Cross multiply
    12,233.80x = 16,882.50 × 6,644.80
  4. Step 4: Simplify right side
    12,233.80x = 112,180,836
  5. Step 5: Solve for x
    x = 112,180,836/12,233.80
  6. Step 6: Final answer
    x = 9,169.75

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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.