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Finding the Fourth Proportional to 68,651.84, 94,739.12 and 38,437.04

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Solution

The fourth proportional to 68,651.84, 94,739.12 and 38,437.04 is: 53,042.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,651.84 : 94,739.12 = 38,437.04 : x
  2. Step 2: Convert to fraction form
    68,651.84/94,739.12 = 38,437.04/x
  3. Step 3: Cross multiply
    68,651.84x = 94,739.12 × 38,437.04
  4. Step 4: Simplify right side
    68,651.84x = 3,641,491,345.00
  5. Step 5: Solve for x
    x = 3,641,491,345.00/68,651.84
  6. Step 6: Final answer
    x = 53,042.88

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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.