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Finding the Fourth Proportional to 7,375.87, 11,068.58 and 3,480.49

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Solution

The fourth proportional to 7,375.87, 11,068.58 and 3,480.49 is: 5,222.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,375.87 : 11,068.58 = 3,480.49 : x
  2. Step 2: Convert to fraction form
    7,375.87/11,068.58 = 3,480.49/x
  3. Step 3: Cross multiply
    7,375.87x = 11,068.58 × 3,480.49
  4. Step 4: Simplify right side
    7,375.87x = 38,524,082.00
  5. Step 5: Solve for x
    x = 38,524,082.00/7,375.87
  6. Step 6: Final answer
    x = 5,222.99

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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.