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Finding the Fourth Proportional to 68,662.52, 94,755.68 and 38,854.52

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Solution

The fourth proportional to 68,662.52, 94,755.68 and 38,854.52 is: 53,620.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,662.52 : 94,755.68 = 38,854.52 : x
  2. Step 2: Convert to fraction form
    68,662.52/94,755.68 = 38,854.52/x
  3. Step 3: Cross multiply
    68,662.52x = 94,755.68 × 38,854.52
  4. Step 4: Simplify right side
    68,662.52x = 3,681,686,463.67
  5. Step 5: Solve for x
    x = 3,681,686,463.67/68,662.52
  6. Step 6: Final answer
    x = 53,620.03

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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.