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Finding the Fourth Proportional to 13,850.52, 20,773.81 and 7,908.12

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Solution

The fourth proportional to 13,850.52, 20,773.81 and 7,908.12 is: 11,861.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,850.52 : 20,773.81 = 7,908.12 : x
  2. Step 2: Convert to fraction form
    13,850.52/20,773.81 = 7,908.12/x
  3. Step 3: Cross multiply
    13,850.52x = 20,773.81 × 7,908.12
  4. Step 4: Simplify right side
    13,850.52x = 164,281,782.34
  5. Step 5: Solve for x
    x = 164,281,782.34/13,850.52
  6. Step 6: Final answer
    x = 11,861.06

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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.