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Finding the Fourth Proportional to 16,761.96, 25,142.94 and 5,074.88

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Solution

The fourth proportional to 16,761.96, 25,142.94 and 5,074.88 is: 7,612.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,761.96 : 25,142.94 = 5,074.88 : x
  2. Step 2: Convert to fraction form
    16,761.96/25,142.94 = 5,074.88/x
  3. Step 3: Cross multiply
    16,761.96x = 25,142.94 × 5,074.88
  4. Step 4: Simplify right side
    16,761.96x = 127,597,277.63
  5. Step 5: Solve for x
    x = 127,597,277.63/16,761.96
  6. Step 6: Final answer
    x = 7,612.31

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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.