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Finding the Fourth Proportional to 61,935.56, 92,883.50 and 20,372.68

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Solution

The fourth proportional to 61,935.56, 92,883.50 and 20,372.68 is: 30,552.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,935.56 : 92,883.50 = 20,372.68 : x
  2. Step 2: Convert to fraction form
    61,935.56/92,883.50 = 20,372.68/x
  3. Step 3: Cross multiply
    61,935.56x = 92,883.50 × 20,372.68
  4. Step 4: Simplify right side
    61,935.56x = 1,892,285,822.78
  5. Step 5: Solve for x
    x = 1,892,285,822.78/61,935.56
  6. Step 6: Final answer
    x = 30,552.49

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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.