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Finding the Fourth Proportional to 7,195.91, 9,927.41 and 5,311.98

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Solution

The fourth proportional to 7,195.91, 9,927.41 and 5,311.98 is: 7,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,195.91 : 9,927.41 = 5,311.98 : x
  2. Step 2: Convert to fraction form
    7,195.91/9,927.41 = 5,311.98/x
  3. Step 3: Cross multiply
    7,195.91x = 9,927.41 × 5,311.98
  4. Step 4: Simplify right side
    7,195.91x = 52,734,176.81
  5. Step 5: Solve for x
    x = 52,734,176.81/7,195.91
  6. Step 6: Final answer
    x = 7,328.36

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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.