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Finding the Fourth Proportional to 66,508.44, 91,780.43 and 36,293.00

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Solution

The fourth proportional to 66,508.44, 91,780.43 and 36,293.00 is: 50,083.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,508.44 : 91,780.43 = 36,293.00 : x
  2. Step 2: Convert to fraction form
    66,508.44/91,780.43 = 36,293.00/x
  3. Step 3: Cross multiply
    66,508.44x = 91,780.43 × 36,293.00
  4. Step 4: Simplify right side
    66,508.44x = 3,330,986,505.62
  5. Step 5: Solve for x
    x = 3,330,986,505.62/66,508.44
  6. Step 6: Final answer
    x = 50,083.67

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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.