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Finding the Fourth Proportional to 65,051.88, 89,761.68 and 36,747.24

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Solution

The fourth proportional to 65,051.88, 89,761.68 and 36,747.24 is: 50,705.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,051.88 : 89,761.68 = 36,747.24 : x
  2. Step 2: Convert to fraction form
    65,051.88/89,761.68 = 36,747.24/x
  3. Step 3: Cross multiply
    65,051.88x = 89,761.68 × 36,747.24
  4. Step 4: Simplify right side
    65,051.88x = 3,298,493,997.76
  5. Step 5: Solve for x
    x = 3,298,493,997.76/65,051.88
  6. Step 6: Final answer
    x = 50,705.59

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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.