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Finding the Fourth Proportional to 36,489.16, 50,355.13 and 19,722.16

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Solution

The fourth proportional to 36,489.16, 50,355.13 and 19,722.16 is: 27,216.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,489.16 : 50,355.13 = 19,722.16 : x
  2. Step 2: Convert to fraction form
    36,489.16/50,355.13 = 19,722.16/x
  3. Step 3: Cross multiply
    36,489.16x = 50,355.13 × 19,722.16
  4. Step 4: Simplify right side
    36,489.16x = 993,111,755.49
  5. Step 5: Solve for x
    x = 993,111,755.49/36,489.16
  6. Step 6: Final answer
    x = 27,216.63

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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.