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Finding the Fourth Proportional to 7,195.80, 9,927.24 and 5,311.92

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Solution

The fourth proportional to 7,195.80, 9,927.24 and 5,311.92 is: 7,328.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,195.80 : 9,927.24 = 5,311.92 : x
  2. Step 2: Convert to fraction form
    7,195.80/9,927.24 = 5,311.92/x
  3. Step 3: Cross multiply
    7,195.80x = 9,927.24 × 5,311.92
  4. Step 4: Simplify right side
    7,195.80x = 52,732,704.70
  5. Step 5: Solve for x
    x = 52,732,704.70/7,195.80
  6. Step 6: Final answer
    x = 7,328.26

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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.