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Finding the Fourth Proportional to 7,472.88, 11,219.24 and 6,384.24

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Solution

The fourth proportional to 7,472.88, 11,219.24 and 6,384.24 is: 9,584.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.88 : 11,219.24 = 6,384.24 : x
  2. Step 2: Convert to fraction form
    7,472.88/11,219.24 = 6,384.24/x
  3. Step 3: Cross multiply
    7,472.88x = 11,219.24 × 6,384.24
  4. Step 4: Simplify right side
    7,472.88x = 71,626,320.78
  5. Step 5: Solve for x
    x = 71,626,320.78/7,472.88
  6. Step 6: Final answer
    x = 9,584.83

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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.