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Finding the Fourth Proportional to 66,922.80, 92,355.24 and 36,709.44

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Solution

The fourth proportional to 66,922.80, 92,355.24 and 36,709.44 is: 50,660.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,922.80 : 92,355.24 = 36,709.44 : x
  2. Step 2: Convert to fraction form
    66,922.80/92,355.24 = 36,709.44/x
  3. Step 3: Cross multiply
    66,922.80x = 92,355.24 × 36,709.44
  4. Step 4: Simplify right side
    66,922.80x = 3,390,309,141.47
  5. Step 5: Solve for x
    x = 3,390,309,141.47/66,922.80
  6. Step 6: Final answer
    x = 50,660.00

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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.