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Finding the Fourth Proportional to 52,876.60, 72,968.24 and 30,211.99

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Solution

The fourth proportional to 52,876.60, 72,968.24 and 30,211.99 is: 41,691.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,876.60 : 72,968.24 = 30,211.99 : x
  2. Step 2: Convert to fraction form
    52,876.60/72,968.24 = 30,211.99/x
  3. Step 3: Cross multiply
    52,876.60x = 72,968.24 × 30,211.99
  4. Step 4: Simplify right side
    52,876.60x = 2,204,515,630.31
  5. Step 5: Solve for x
    x = 2,204,515,630.31/52,876.60
  6. Step 6: Final answer
    x = 41,691.71

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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.