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Finding the Fourth Proportional to 65,969.88, 91,039.44 and 37,675.62

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Solution

The fourth proportional to 65,969.88, 91,039.44 and 37,675.62 is: 51,992.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,969.88 : 91,039.44 = 37,675.62 : x
  2. Step 2: Convert to fraction form
    65,969.88/91,039.44 = 37,675.62/x
  3. Step 3: Cross multiply
    65,969.88x = 91,039.44 × 37,675.62
  4. Step 4: Simplify right side
    65,969.88x = 3,429,967,346.45
  5. Step 5: Solve for x
    x = 3,429,967,346.45/65,969.88
  6. Step 6: Final answer
    x = 51,992.93

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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.