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Finding the Fourth Proportional to 22,361.16, 30,860.24 and 14,419.92

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Solution

The fourth proportional to 22,361.16, 30,860.24 and 14,419.92 is: 19,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.16 : 30,860.24 = 14,419.92 : x
  2. Step 2: Convert to fraction form
    22,361.16/30,860.24 = 14,419.92/x
  3. Step 3: Cross multiply
    22,361.16x = 30,860.24 × 14,419.92
  4. Step 4: Simplify right side
    22,361.16x = 445,002,191.98
  5. Step 5: Solve for x
    x = 445,002,191.98/22,361.16
  6. Step 6: Final answer
    x = 19,900.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.