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Finding the Fourth Proportional to 46,990.67, 70,504.43 and 20,676.94

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Solution

The fourth proportional to 46,990.67, 70,504.43 and 20,676.94 is: 31,023.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,990.67 : 70,504.43 = 20,676.94 : x
  2. Step 2: Convert to fraction form
    46,990.67/70,504.43 = 20,676.94/x
  3. Step 3: Cross multiply
    46,990.67x = 70,504.43 × 20,676.94
  4. Step 4: Simplify right side
    46,990.67x = 1,457,815,589.20
  5. Step 5: Solve for x
    x = 1,457,815,589.20/46,990.67
  6. Step 6: Final answer
    x = 31,023.51

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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.