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Finding the Fourth Proportional to 69,993.15, 96,591 and 38,162.58

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Solution

The fourth proportional to 69,993.15, 96,591 and 38,162.58 is: 52,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,993.15 : 96,591 = 38,162.58 : x
  2. Step 2: Convert to fraction form
    69,993.15/96,591 = 38,162.58/x
  3. Step 3: Cross multiply
    69,993.15x = 96,591 × 38,162.58
  4. Step 4: Simplify right side
    69,993.15x = 3,686,161,764.78
  5. Step 5: Solve for x
    x = 3,686,161,764.78/69,993.15
  6. Step 6: Final answer
    x = 52,664.61

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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.