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Finding the Fourth Proportional to 1,841.32, 2,763.71 and 672.45

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Solution

The fourth proportional to 1,841.32, 2,763.71 and 672.45 is: 1,009.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.32 : 2,763.71 = 672.45 : x
  2. Step 2: Convert to fraction form
    1,841.32/2,763.71 = 672.45/x
  3. Step 3: Cross multiply
    1,841.32x = 2,763.71 × 672.45
  4. Step 4: Simplify right side
    1,841.32x = 1,858,456.79
  5. Step 5: Solve for x
    x = 1,858,456.79/1,841.32
  6. Step 6: Final answer
    x = 1,009.31

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