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Finding the Fourth Proportional to 7,622.28, 11,502.36 and 7,361.46

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Solution

The fourth proportional to 7,622.28, 11,502.36 and 7,361.46 is: 11,108.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.28 : 11,502.36 = 7,361.46 : x
  2. Step 2: Convert to fraction form
    7,622.28/11,502.36 = 7,361.46/x
  3. Step 3: Cross multiply
    7,622.28x = 11,502.36 × 7,361.46
  4. Step 4: Simplify right side
    7,622.28x = 84,674,163.05
  5. Step 5: Solve for x
    x = 84,674,163.05/7,622.28
  6. Step 6: Final answer
    x = 11,108.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.