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Finding the Fourth Proportional to 20,049.84, 30,068.25 and 14,515.92

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Solution

The fourth proportional to 20,049.84, 30,068.25 and 14,515.92 is: 21,769.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049.84 : 30,068.25 = 14,515.92 : x
  2. Step 2: Convert to fraction form
    20,049.84/30,068.25 = 14,515.92/x
  3. Step 3: Cross multiply
    20,049.84x = 30,068.25 × 14,515.92
  4. Step 4: Simplify right side
    20,049.84x = 436,468,311.54
  5. Step 5: Solve for x
    x = 436,468,311.54/20,049.84
  6. Step 6: Final answer
    x = 21,769.17

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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.