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Finding the Fourth Proportional to 14,659.38, 20,230.05 and 7,944.99

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Solution

The fourth proportional to 14,659.38, 20,230.05 and 7,944.99 is: 10,964.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,659.38 : 20,230.05 = 7,944.99 : x
  2. Step 2: Convert to fraction form
    14,659.38/20,230.05 = 7,944.99/x
  3. Step 3: Cross multiply
    14,659.38x = 20,230.05 × 7,944.99
  4. Step 4: Simplify right side
    14,659.38x = 160,727,498.88
  5. Step 5: Solve for x
    x = 160,727,498.88/14,659.38
  6. Step 6: Final answer
    x = 10,964.14

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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.