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Finding the Fourth Proportional to 3,463.74, 4,779.81 and 1,891.89

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Solution

The fourth proportional to 3,463.74, 4,779.81 and 1,891.89 is: 2,610.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,463.74 : 4,779.81 = 1,891.89 : x
  2. Step 2: Convert to fraction form
    3,463.74/4,779.81 = 1,891.89/x
  3. Step 3: Cross multiply
    3,463.74x = 4,779.81 × 1,891.89
  4. Step 4: Simplify right side
    3,463.74x = 9,042,874.74
  5. Step 5: Solve for x
    x = 9,042,874.74/3,463.74
  6. Step 6: Final answer
    x = 2,610.73

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1.5x scale

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.