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Finding the Fourth Proportional to 50,425.16, 75,619.74 and 16,685

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Solution

The fourth proportional to 50,425.16, 75,619.74 and 16,685 is: 25,021.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,425.16 : 75,619.74 = 16,685 : x
  2. Step 2: Convert to fraction form
    50,425.16/75,619.74 = 16,685/x
  3. Step 3: Cross multiply
    50,425.16x = 75,619.74 × 16,685
  4. Step 4: Simplify right side
    50,425.16x = 1,261,715,361.90
  5. Step 5: Solve for x
    x = 1,261,715,361.90/50,425.16
  6. Step 6: Final answer
    x = 25,021.54

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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.