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Finding the Fourth Proportional to 65,863.44, 90,891.79 and 35,649.16

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Solution

The fourth proportional to 65,863.44, 90,891.79 and 35,649.16 is: 49,195.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,863.44 : 90,891.79 = 35,649.16 : x
  2. Step 2: Convert to fraction form
    65,863.44/90,891.79 = 35,649.16/x
  3. Step 3: Cross multiply
    65,863.44x = 90,891.79 × 35,649.16
  4. Step 4: Simplify right side
    65,863.44x = 3,240,215,648.04
  5. Step 5: Solve for x
    x = 3,240,215,648.04/65,863.44
  6. Step 6: Final answer
    x = 49,195.97

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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.