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Finding the Fourth Proportional to 61,920.96, 85,450.32 and 33,624.96

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Solution

The fourth proportional to 61,920.96, 85,450.32 and 33,624.96 is: 46,402.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,920.96 : 85,450.32 = 33,624.96 : x
  2. Step 2: Convert to fraction form
    61,920.96/85,450.32 = 33,624.96/x
  3. Step 3: Cross multiply
    61,920.96x = 85,450.32 × 33,624.96
  4. Step 4: Simplify right side
    61,920.96x = 2,873,263,591.99
  5. Step 5: Solve for x
    x = 2,873,263,591.99/61,920.96
  6. Step 6: Final answer
    x = 46,402.12

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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.