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Finding the Fourth Proportional to 16,636.80, 24,958.80 and 4,951.20

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Solution

The fourth proportional to 16,636.80, 24,958.80 and 4,951.20 is: 7,427.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,636.80 : 24,958.80 = 4,951.20 : x
  2. Step 2: Convert to fraction form
    16,636.80/24,958.80 = 4,951.20/x
  3. Step 3: Cross multiply
    16,636.80x = 24,958.80 × 4,951.20
  4. Step 4: Simplify right side
    16,636.80x = 123,576,010.56
  5. Step 5: Solve for x
    x = 123,576,010.56/16,636.80
  6. Step 6: Final answer
    x = 7,427.87

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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.