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Finding the Fourth Proportional to 66,464.87, 91,740.49 and 37,799.98

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Solution

The fourth proportional to 66,464.87, 91,740.49 and 37,799.98 is: 52,174.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,464.87 : 91,740.49 = 37,799.98 : x
  2. Step 2: Convert to fraction form
    66,464.87/91,740.49 = 37,799.98/x
  3. Step 3: Cross multiply
    66,464.87x = 91,740.49 × 37,799.98
  4. Step 4: Simplify right side
    66,464.87x = 3,467,788,363.34
  5. Step 5: Solve for x
    x = 3,467,788,363.34/66,464.87
  6. Step 6: Final answer
    x = 52,174.76

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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.