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Finding the Fourth Proportional to 61,994.25, 92,991.42 and 20,441.25

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Solution

The fourth proportional to 61,994.25, 92,991.42 and 20,441.25 is: 30,661.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,994.25 : 92,991.42 = 20,441.25 : x
  2. Step 2: Convert to fraction form
    61,994.25/92,991.42 = 20,441.25/x
  3. Step 3: Cross multiply
    61,994.25x = 92,991.42 × 20,441.25
  4. Step 4: Simplify right side
    61,994.25x = 1,900,860,864.08
  5. Step 5: Solve for x
    x = 1,900,860,864.08/61,994.25
  6. Step 6: Final answer
    x = 30,661.89

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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.