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Finding the Fourth Proportional to 20,361.97, 30,524.16 and 14,124.93

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Solution

The fourth proportional to 20,361.97, 30,524.16 and 14,124.93 is: 21,174.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361.97 : 30,524.16 = 14,124.93 : x
  2. Step 2: Convert to fraction form
    20,361.97/30,524.16 = 14,124.93/x
  3. Step 3: Cross multiply
    20,361.97x = 30,524.16 × 14,124.93
  4. Step 4: Simplify right side
    20,361.97x = 431,151,561.81
  5. Step 5: Solve for x
    x = 431,151,561.81/20,361.97
  6. Step 6: Final answer
    x = 21,174.35

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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.