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Finding the Fourth Proportional to 36,489.29, 50,355.07 and 19,722.29

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Solution

The fourth proportional to 36,489.29, 50,355.07 and 19,722.29 is: 27,216.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,489.29 : 50,355.07 = 19,722.29 : x
  2. Step 2: Convert to fraction form
    36,489.29/50,355.07 = 19,722.29/x
  3. Step 3: Cross multiply
    36,489.29x = 50,355.07 × 19,722.29
  4. Step 4: Simplify right side
    36,489.29x = 993,116,992.43
  5. Step 5: Solve for x
    x = 993,116,992.43/36,489.29
  6. Step 6: Final answer
    x = 27,216.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.