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Finding the Fourth Proportional to 69,846.88, 96,431.76 and 48,080.32

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Solution

The fourth proportional to 69,846.88, 96,431.76 and 48,080.32 is: 66,380.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,846.88 : 96,431.76 = 48,080.32 : x
  2. Step 2: Convert to fraction form
    69,846.88/96,431.76 = 48,080.32/x
  3. Step 3: Cross multiply
    69,846.88x = 96,431.76 × 48,080.32
  4. Step 4: Simplify right side
    69,846.88x = 4,636,469,878.96
  5. Step 5: Solve for x
    x = 4,636,469,878.96/69,846.88
  6. Step 6: Final answer
    x = 66,380.49

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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.