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Finding the Fourth Proportional to 65,367.14, 90,199.19 and 36,680.85

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Solution

The fourth proportional to 65,367.14, 90,199.19 and 36,680.85 is: 50,615.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,367.14 : 90,199.19 = 36,680.85 : x
  2. Step 2: Convert to fraction form
    65,367.14/90,199.19 = 36,680.85/x
  3. Step 3: Cross multiply
    65,367.14x = 90,199.19 × 36,680.85
  4. Step 4: Simplify right side
    65,367.14x = 3,308,583,050.21
  5. Step 5: Solve for x
    x = 3,308,583,050.21/65,367.14
  6. Step 6: Final answer
    x = 50,615.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.