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Finding the Fourth Proportional to 7,750.52, 10,695.57 and 4,213.70

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Solution

The fourth proportional to 7,750.52, 10,695.57 and 4,213.70 is: 5,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.52 : 10,695.57 = 4,213.70 : x
  2. Step 2: Convert to fraction form
    7,750.52/10,695.57 = 4,213.70/x
  3. Step 3: Cross multiply
    7,750.52x = 10,695.57 × 4,213.70
  4. Step 4: Simplify right side
    7,750.52x = 45,067,923.31
  5. Step 5: Solve for x
    x = 45,067,923.31/7,750.52
  6. Step 6: Final answer
    x = 5,814.83

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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.