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Finding the Fourth Proportional to 7,472.70, 11,196.90 and 4,694.40

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Solution

The fourth proportional to 7,472.70, 11,196.90 and 4,694.40 is: 7,033.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.70 : 11,196.90 = 4,694.40 : x
  2. Step 2: Convert to fraction form
    7,472.70/11,196.90 = 4,694.40/x
  3. Step 3: Cross multiply
    7,472.70x = 11,196.90 × 4,694.40
  4. Step 4: Simplify right side
    7,472.70x = 52,562,727.36
  5. Step 5: Solve for x
    x = 52,562,727.36/7,472.70
  6. Step 6: Final answer
    x = 7,033.97

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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.