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Finding the Fourth Proportional to 20,645.70, 30,968.67 and 5,063.34

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Solution

The fourth proportional to 20,645.70, 30,968.67 and 5,063.34 is: 7,595.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645.70 : 30,968.67 = 5,063.34 : x
  2. Step 2: Convert to fraction form
    20,645.70/30,968.67 = 5,063.34/x
  3. Step 3: Cross multiply
    20,645.70x = 30,968.67 × 5,063.34
  4. Step 4: Simplify right side
    20,645.70x = 156,804,905.56
  5. Step 5: Solve for x
    x = 156,804,905.56/20,645.70
  6. Step 6: Final answer
    x = 7,595.04

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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.