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Finding the Fourth Proportional to 20,365.67, 30,546.60 and 7,037.42

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Solution

The fourth proportional to 20,365.67, 30,546.60 and 7,037.42 is: 10,555.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,365.67 : 30,546.60 = 7,037.42 : x
  2. Step 2: Convert to fraction form
    20,365.67/30,546.60 = 7,037.42/x
  3. Step 3: Cross multiply
    20,365.67x = 30,546.60 × 7,037.42
  4. Step 4: Simplify right side
    20,365.67x = 214,969,253.77
  5. Step 5: Solve for x
    x = 214,969,253.77/20,365.67
  6. Step 6: Final answer
    x = 10,555.47

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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.