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Finding the Fourth Proportional to 7,611.84, 11,399.49 and 4,484.43

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Solution

The fourth proportional to 7,611.84, 11,399.49 and 4,484.43 is: 6,715.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.84 : 11,399.49 = 4,484.43 : x
  2. Step 2: Convert to fraction form
    7,611.84/11,399.49 = 4,484.43/x
  3. Step 3: Cross multiply
    7,611.84x = 11,399.49 × 4,484.43
  4. Step 4: Simplify right side
    7,611.84x = 51,120,214.94
  5. Step 5: Solve for x
    x = 51,120,214.94/7,611.84
  6. Step 6: Final answer
    x = 6,715.88

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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.