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Finding the Fourth Proportional to 9,143.88, 13,716.60 and 3,596.88

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Solution

The fourth proportional to 9,143.88, 13,716.60 and 3,596.88 is: 5,395.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.88 : 13,716.60 = 3,596.88 : x
  2. Step 2: Convert to fraction form
    9,143.88/13,716.60 = 3,596.88/x
  3. Step 3: Cross multiply
    9,143.88x = 13,716.60 × 3,596.88
  4. Step 4: Simplify right side
    9,143.88x = 49,336,964.21
  5. Step 5: Solve for x
    x = 49,336,964.21/9,143.88
  6. Step 6: Final answer
    x = 5,395.63

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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.