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Finding the Fourth Proportional to 1,842.54, 2,764.01 and 746.74

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Solution

The fourth proportional to 1,842.54, 2,764.01 and 746.74 is: 1,120.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.54 : 2,764.01 = 746.74 : x
  2. Step 2: Convert to fraction form
    1,842.54/2,764.01 = 746.74/x
  3. Step 3: Cross multiply
    1,842.54x = 2,764.01 × 746.74
  4. Step 4: Simplify right side
    1,842.54x = 2,063,996.83
  5. Step 5: Solve for x
    x = 2,063,996.83/1,842.54
  6. Step 6: Final answer
    x = 1,120.19

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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.