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Finding the Fourth Proportional to 65,170.53, 89,914.43 and 36,485.97

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Solution

The fourth proportional to 65,170.53, 89,914.43 and 36,485.97 is: 50,338.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,170.53 : 89,914.43 = 36,485.97 : x
  2. Step 2: Convert to fraction form
    65,170.53/89,914.43 = 36,485.97/x
  3. Step 3: Cross multiply
    65,170.53x = 89,914.43 × 36,485.97
  4. Step 4: Simplify right side
    65,170.53x = 3,280,615,195.55
  5. Step 5: Solve for x
    x = 3,280,615,195.55/65,170.53
  6. Step 6: Final answer
    x = 50,338.94

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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.