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Finding the Fourth Proportional to 11,361.15, 17,045.97 and 5,119.29

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Solution

The fourth proportional to 11,361.15, 17,045.97 and 5,119.29 is: 7,680.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.15 : 17,045.97 = 5,119.29 : x
  2. Step 2: Convert to fraction form
    11,361.15/17,045.97 = 5,119.29/x
  3. Step 3: Cross multiply
    11,361.15x = 17,045.97 × 5,119.29
  4. Step 4: Simplify right side
    11,361.15x = 87,263,263.76
  5. Step 5: Solve for x
    x = 87,263,263.76/11,361.15
  6. Step 6: Final answer
    x = 7,680.85

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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.