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Finding the Fourth Proportional to 58,899.74, 81,279.89 and 33,408.44

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Solution

The fourth proportional to 58,899.74, 81,279.89 and 33,408.44 is: 46,102.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,899.74 : 81,279.89 = 33,408.44 : x
  2. Step 2: Convert to fraction form
    58,899.74/81,279.89 = 33,408.44/x
  3. Step 3: Cross multiply
    58,899.74x = 81,279.89 × 33,408.44
  4. Step 4: Simplify right side
    58,899.74x = 2,715,434,211.55
  5. Step 5: Solve for x
    x = 2,715,434,211.55/58,899.74
  6. Step 6: Final answer
    x = 46,102.65

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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.