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Finding the Fourth Proportional to 7,368.88, 11,057.56 and 3,906.12

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Solution

The fourth proportional to 7,368.88, 11,057.56 and 3,906.12 is: 5,861.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.88 : 11,057.56 = 3,906.12 : x
  2. Step 2: Convert to fraction form
    7,368.88/11,057.56 = 3,906.12/x
  3. Step 3: Cross multiply
    7,368.88x = 11,057.56 × 3,906.12
  4. Step 4: Simplify right side
    7,368.88x = 43,192,156.27
  5. Step 5: Solve for x
    x = 43,192,156.27/7,368.88
  6. Step 6: Final answer
    x = 5,861.43

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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.