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Finding the Fourth Proportional to 14,836.84, 20,474.84 and 8,122.45

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Solution

The fourth proportional to 14,836.84, 20,474.84 and 8,122.45 is: 11,208.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,836.84 : 20,474.84 = 8,122.45 : x
  2. Step 2: Convert to fraction form
    14,836.84/20,474.84 = 8,122.45/x
  3. Step 3: Cross multiply
    14,836.84x = 20,474.84 × 8,122.45
  4. Step 4: Simplify right side
    14,836.84x = 166,305,884.46
  5. Step 5: Solve for x
    x = 166,305,884.46/14,836.84
  6. Step 6: Final answer
    x = 11,208.98

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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.