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Finding the Fourth Proportional to 45,804.26, 68,698.17 and 20,845.11

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Solution

The fourth proportional to 45,804.26, 68,698.17 and 20,845.11 is: 31,263.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,804.26 : 68,698.17 = 20,845.11 : x
  2. Step 2: Convert to fraction form
    45,804.26/68,698.17 = 20,845.11/x
  3. Step 3: Cross multiply
    45,804.26x = 68,698.17 × 20,845.11
  4. Step 4: Simplify right side
    45,804.26x = 1,432,020,910.45
  5. Step 5: Solve for x
    x = 1,432,020,910.45/45,804.26
  6. Step 6: Final answer
    x = 31,263.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.