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Finding the Fourth Proportional to 68,613.72, 103,015.03 and 34,902.56

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Solution

The fourth proportional to 68,613.72, 103,015.03 and 34,902.56 is: 52,401.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,613.72 : 103,015.03 = 34,902.56 : x
  2. Step 2: Convert to fraction form
    68,613.72/103,015.03 = 34,902.56/x
  3. Step 3: Cross multiply
    68,613.72x = 103,015.03 × 34,902.56
  4. Step 4: Simplify right side
    68,613.72x = 3,595,488,265.48
  5. Step 5: Solve for x
    x = 3,595,488,265.48/68,613.72
  6. Step 6: Final answer
    x = 52,401.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.