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Finding the Fourth Proportional to 14,674.68, 20,251.13 and 11,311.25

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Solution

The fourth proportional to 14,674.68, 20,251.13 and 11,311.25 is: 15,609.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,674.68 : 20,251.13 = 11,311.25 : x
  2. Step 2: Convert to fraction form
    14,674.68/20,251.13 = 11,311.25/x
  3. Step 3: Cross multiply
    14,674.68x = 20,251.13 × 11,311.25
  4. Step 4: Simplify right side
    14,674.68x = 229,065,594.21
  5. Step 5: Solve for x
    x = 229,065,594.21/14,674.68
  6. Step 6: Final answer
    x = 15,609.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.