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Finding the Fourth Proportional to 7,516.56, 10,375.76 and 6,729.24

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Solution

The fourth proportional to 7,516.56, 10,375.76 and 6,729.24 is: 9,288.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,516.56 : 10,375.76 = 6,729.24 : x
  2. Step 2: Convert to fraction form
    7,516.56/10,375.76 = 6,729.24/x
  3. Step 3: Cross multiply
    7,516.56x = 10,375.76 × 6,729.24
  4. Step 4: Simplify right side
    7,516.56x = 69,820,979.22
  5. Step 5: Solve for x
    x = 69,820,979.22/7,516.56
  6. Step 6: Final answer
    x = 9,288.95

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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.