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Finding the Fourth Proportional to 36,892.80, 55,339.32 and 9,190.80

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Solution

The fourth proportional to 36,892.80, 55,339.32 and 9,190.80 is: 13,786.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,892.80 : 55,339.32 = 9,190.80 : x
  2. Step 2: Convert to fraction form
    36,892.80/55,339.32 = 9,190.80/x
  3. Step 3: Cross multiply
    36,892.80x = 55,339.32 × 9,190.80
  4. Step 4: Simplify right side
    36,892.80x = 508,612,622.26
  5. Step 5: Solve for x
    x = 508,612,622.26/36,892.80
  6. Step 6: Final answer
    x = 13,786.23

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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.