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Finding the Fourth Proportional to 61,329.77, 91,994.35 and 16,355.81

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Solution

The fourth proportional to 61,329.77, 91,994.35 and 16,355.81 is: 24,533.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,329.77 : 91,994.35 = 16,355.81 : x
  2. Step 2: Convert to fraction form
    61,329.77/91,994.35 = 16,355.81/x
  3. Step 3: Cross multiply
    61,329.77x = 91,994.35 × 16,355.81
  4. Step 4: Simplify right side
    61,329.77x = 1,504,641,811.97
  5. Step 5: Solve for x
    x = 1,504,641,811.97/61,329.77
  6. Step 6: Final answer
    x = 24,533.63

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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.