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Finding the Fourth Proportional to 16,979.84, 25,470.90 and 4,499.70

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Solution

The fourth proportional to 16,979.84, 25,470.90 and 4,499.70 is: 6,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,979.84 : 25,470.90 = 4,499.70 : x
  2. Step 2: Convert to fraction form
    16,979.84/25,470.90 = 4,499.70/x
  3. Step 3: Cross multiply
    16,979.84x = 25,470.90 × 4,499.70
  4. Step 4: Simplify right side
    16,979.84x = 114,611,408.73
  5. Step 5: Solve for x
    x = 114,611,408.73/16,979.84
  6. Step 6: Final answer
    x = 6,749.85

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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.