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Finding the Fourth Proportional to 68,672.90, 94,757.64 and 38,459.49

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Solution

The fourth proportional to 68,672.90, 94,757.64 and 38,459.49 is: 53,067.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,672.90 : 94,757.64 = 38,459.49 : x
  2. Step 2: Convert to fraction form
    68,672.90/94,757.64 = 38,459.49/x
  3. Step 3: Cross multiply
    68,672.90x = 94,757.64 × 38,459.49
  4. Step 4: Simplify right side
    68,672.90x = 3,644,330,508.00
  5. Step 5: Solve for x
    x = 3,644,330,508.00/68,672.90
  6. Step 6: Final answer
    x = 53,067.96

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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.