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Finding the Fourth Proportional to 68,653.26, 94,736.43 and 38,431.62

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Solution

The fourth proportional to 68,653.26, 94,736.43 and 38,431.62 is: 53,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,653.26 : 94,736.43 = 38,431.62 : x
  2. Step 2: Convert to fraction form
    68,653.26/94,736.43 = 38,431.62/x
  3. Step 3: Cross multiply
    68,653.26x = 94,736.43 × 38,431.62
  4. Step 4: Simplify right side
    68,653.26x = 3,640,874,477.92
  5. Step 5: Solve for x
    x = 3,640,874,477.92/68,653.26
  6. Step 6: Final answer
    x = 53,032.80

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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.