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Finding the Fourth Proportional to 20,373.70, 30,607.24 and 12,059.46

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Solution

The fourth proportional to 20,373.70, 30,607.24 and 12,059.46 is: 18,116.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373.70 : 30,607.24 = 12,059.46 : x
  2. Step 2: Convert to fraction form
    20,373.70/30,607.24 = 12,059.46/x
  3. Step 3: Cross multiply
    20,373.70x = 30,607.24 × 12,059.46
  4. Step 4: Simplify right side
    20,373.70x = 369,106,786.49
  5. Step 5: Solve for x
    x = 369,106,786.49/20,373.70
  6. Step 6: Final answer
    x = 18,116.83

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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.