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Finding the Fourth Proportional to 66,842.58, 92,242.68 and 36,629.79

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Solution

The fourth proportional to 66,842.58, 92,242.68 and 36,629.79 is: 50,549.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,842.58 : 92,242.68 = 36,629.79 : x
  2. Step 2: Convert to fraction form
    66,842.58/92,242.68 = 36,629.79/x
  3. Step 3: Cross multiply
    66,842.58x = 92,242.68 × 36,629.79
  4. Step 4: Simplify right side
    66,842.58x = 3,378,829,997.44
  5. Step 5: Solve for x
    x = 3,378,829,997.44/66,842.58
  6. Step 6: Final answer
    x = 50,549.07

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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.