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Finding the Fourth Proportional to 16,611, 22,896.45 and 12,127.65

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Solution

The fourth proportional to 16,611, 22,896.45 and 12,127.65 is: 16,716.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,611 : 22,896.45 = 12,127.65 : x
  2. Step 2: Convert to fraction form
    16,611/22,896.45 = 12,127.65/x
  3. Step 3: Cross multiply
    16,611x = 22,896.45 × 12,127.65
  4. Step 4: Simplify right side
    16,611x = 277,680,131.84
  5. Step 5: Solve for x
    x = 277,680,131.84/16,611
  6. Step 6: Final answer
    x = 16,716.64

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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.