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Finding the Fourth Proportional to 13,924.05, 20,867.17 and 7,674.70

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Solution

The fourth proportional to 13,924.05, 20,867.17 and 7,674.70 is: 11,501.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,924.05 : 20,867.17 = 7,674.70 : x
  2. Step 2: Convert to fraction form
    13,924.05/20,867.17 = 7,674.70/x
  3. Step 3: Cross multiply
    13,924.05x = 20,867.17 × 7,674.70
  4. Step 4: Simplify right side
    13,924.05x = 160,149,251.76
  5. Step 5: Solve for x
    x = 160,149,251.76/13,924.05
  6. Step 6: Final answer
    x = 11,501.63

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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.