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Finding the Fourth Proportional to 65,506.39, 90,373.25 and 36,819.56

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Solution

The fourth proportional to 65,506.39, 90,373.25 and 36,819.56 is: 50,796.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,506.39 : 90,373.25 = 36,819.56 : x
  2. Step 2: Convert to fraction form
    65,506.39/90,373.25 = 36,819.56/x
  3. Step 3: Cross multiply
    65,506.39x = 90,373.25 × 36,819.56
  4. Step 4: Simplify right side
    65,506.39x = 3,327,503,618.75
  5. Step 5: Solve for x
    x = 3,327,503,618.75/65,506.39
  6. Step 6: Final answer
    x = 50,796.63

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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.