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Finding the Fourth Proportional to 7,192.20, 10,790.09 and 7,073.01

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Solution

The fourth proportional to 7,192.20, 10,790.09 and 7,073.01 is: 10,611.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,192.20 : 10,790.09 = 7,073.01 : x
  2. Step 2: Convert to fraction form
    7,192.20/10,790.09 = 7,073.01/x
  3. Step 3: Cross multiply
    7,192.20x = 10,790.09 × 7,073.01
  4. Step 4: Simplify right side
    7,192.20x = 76,318,414.47
  5. Step 5: Solve for x
    x = 76,318,414.47/7,192.20
  6. Step 6: Final answer
    x = 10,611.28

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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.