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Finding the Fourth Proportional to 13,737.68, 18,944.04 and 11,754.80

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Solution

The fourth proportional to 13,737.68, 18,944.04 and 11,754.80 is: 16,209.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,737.68 : 18,944.04 = 11,754.80 : x
  2. Step 2: Convert to fraction form
    13,737.68/18,944.04 = 11,754.80/x
  3. Step 3: Cross multiply
    13,737.68x = 18,944.04 × 11,754.80
  4. Step 4: Simplify right side
    13,737.68x = 222,683,401.39
  5. Step 5: Solve for x
    x = 222,683,401.39/13,737.68
  6. Step 6: Final answer
    x = 16,209.68

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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.