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Finding the Fourth Proportional to 6,976.99, 10,472.78 and 4,381.75

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Solution

The fourth proportional to 6,976.99, 10,472.78 and 4,381.75 is: 6,577.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,976.99 : 10,472.78 = 4,381.75 : x
  2. Step 2: Convert to fraction form
    6,976.99/10,472.78 = 4,381.75/x
  3. Step 3: Cross multiply
    6,976.99x = 10,472.78 × 4,381.75
  4. Step 4: Simplify right side
    6,976.99x = 45,889,103.77
  5. Step 5: Solve for x
    x = 45,889,103.77/6,976.99
  6. Step 6: Final answer
    x = 6,577.21

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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.