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Finding the Fourth Proportional to 68,784.94, 94,919.88 and 38,573.56

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Solution

The fourth proportional to 68,784.94, 94,919.88 and 38,573.56 is: 53,229.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,784.94 : 94,919.88 = 38,573.56 : x
  2. Step 2: Convert to fraction form
    68,784.94/94,919.88 = 38,573.56/x
  3. Step 3: Cross multiply
    68,784.94x = 94,919.88 × 38,573.56
  4. Step 4: Simplify right side
    68,784.94x = 3,661,397,686.37
  5. Step 5: Solve for x
    x = 3,661,397,686.37/68,784.94
  6. Step 6: Final answer
    x = 53,229.64

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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.