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Finding the Fourth Proportional to 20,393.76, 30,595.02 and 6,353.48

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Solution

The fourth proportional to 20,393.76, 30,595.02 and 6,353.48 is: 9,531.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393.76 : 30,595.02 = 6,353.48 : x
  2. Step 2: Convert to fraction form
    20,393.76/30,595.02 = 6,353.48/x
  3. Step 3: Cross multiply
    20,393.76x = 30,595.02 × 6,353.48
  4. Step 4: Simplify right side
    20,393.76x = 194,384,847.67
  5. Step 5: Solve for x
    x = 194,384,847.67/20,393.76
  6. Step 6: Final answer
    x = 9,531.58

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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.