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Finding the Fourth Proportional to 45,019.92, 67,523.76 and 11,742.24

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Solution

The fourth proportional to 45,019.92, 67,523.76 and 11,742.24 is: 17,611.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,019.92 : 67,523.76 = 11,742.24 : x
  2. Step 2: Convert to fraction form
    45,019.92/67,523.76 = 11,742.24/x
  3. Step 3: Cross multiply
    45,019.92x = 67,523.76 × 11,742.24
  4. Step 4: Simplify right side
    45,019.92x = 792,880,195.62
  5. Step 5: Solve for x
    x = 792,880,195.62/45,019.92
  6. Step 6: Final answer
    x = 17,611.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.