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Finding the Fourth Proportional to 65,195.37, 90,043.65 and 43,937.73

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Solution

The fourth proportional to 65,195.37, 90,043.65 and 43,937.73 is: 60,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,195.37 : 90,043.65 = 43,937.73 : x
  2. Step 2: Convert to fraction form
    65,195.37/90,043.65 = 43,937.73/x
  3. Step 3: Cross multiply
    65,195.37x = 90,043.65 × 43,937.73
  4. Step 4: Simplify right side
    65,195.37x = 3,956,313,581.91
  5. Step 5: Solve for x
    x = 3,956,313,581.91/65,195.37
  6. Step 6: Final answer
    x = 60,683.97

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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.