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Finding the Fourth Proportional to 36,859.88, 55,290.20 and 9,157.88

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Solution

The fourth proportional to 36,859.88, 55,290.20 and 9,157.88 is: 13,736.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,859.88 : 55,290.20 = 9,157.88 : x
  2. Step 2: Convert to fraction form
    36,859.88/55,290.20 = 9,157.88/x
  3. Step 3: Cross multiply
    36,859.88x = 55,290.20 × 9,157.88
  4. Step 4: Simplify right side
    36,859.88x = 506,340,694.54
  5. Step 5: Solve for x
    x = 506,340,694.54/36,859.88
  6. Step 6: Final answer
    x = 13,736.91

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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.