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Finding the Fourth Proportional to 68,570.82, 94,636.49 and 38,357.82

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Solution

The fourth proportional to 68,570.82, 94,636.49 and 38,357.82 is: 52,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,570.82 : 94,636.49 = 38,357.82 : x
  2. Step 2: Convert to fraction form
    68,570.82/94,636.49 = 38,357.82/x
  3. Step 3: Cross multiply
    68,570.82x = 94,636.49 × 38,357.82
  4. Step 4: Simplify right side
    68,570.82x = 3,630,049,257.06
  5. Step 5: Solve for x
    x = 3,630,049,257.06/68,570.82
  6. Step 6: Final answer
    x = 52,938.69

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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.