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Finding the Fourth Proportional to 14,608.92, 21,906.36 and 7,581.84

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Solution

The fourth proportional to 14,608.92, 21,906.36 and 7,581.84 is: 11,369.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,608.92 : 21,906.36 = 7,581.84 : x
  2. Step 2: Convert to fraction form
    14,608.92/21,906.36 = 7,581.84/x
  3. Step 3: Cross multiply
    14,608.92x = 21,906.36 × 7,581.84
  4. Step 4: Simplify right side
    14,608.92x = 166,090,516.50
  5. Step 5: Solve for x
    x = 166,090,516.50/14,608.92
  6. Step 6: Final answer
    x = 11,369.12

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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.