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Finding the Fourth Proportional to 9,157.85, 13,736.16 and 5,482.88

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Solution

The fourth proportional to 9,157.85, 13,736.16 and 5,482.88 is: 8,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.85 : 13,736.16 = 5,482.88 : x
  2. Step 2: Convert to fraction form
    9,157.85/13,736.16 = 5,482.88/x
  3. Step 3: Cross multiply
    9,157.85x = 13,736.16 × 5,482.88
  4. Step 4: Simplify right side
    9,157.85x = 75,313,716.94
  5. Step 5: Solve for x
    x = 75,313,716.94/9,157.85
  6. Step 6: Final answer
    x = 8,223.95

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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.