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Finding the Fourth Proportional to 61,896.86, 85,437.99 and 36,402.11

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Solution

The fourth proportional to 61,896.86, 85,437.99 and 36,402.11 is: 50,246.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,896.86 : 85,437.99 = 36,402.11 : x
  2. Step 2: Convert to fraction form
    61,896.86/85,437.99 = 36,402.11/x
  3. Step 3: Cross multiply
    61,896.86x = 85,437.99 × 36,402.11
  4. Step 4: Simplify right side
    61,896.86x = 3,110,123,003.36
  5. Step 5: Solve for x
    x = 3,110,123,003.36/61,896.86
  6. Step 6: Final answer
    x = 50,246.86

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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.