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Finding the Fourth Proportional to 2,382.06, 3,573.45 and 842.94

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Solution

The fourth proportional to 2,382.06, 3,573.45 and 842.94 is: 1,264.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.06 : 3,573.45 = 842.94 : x
  2. Step 2: Convert to fraction form
    2,382.06/3,573.45 = 842.94/x
  3. Step 3: Cross multiply
    2,382.06x = 3,573.45 × 842.94
  4. Step 4: Simplify right side
    2,382.06x = 3,012,203.94
  5. Step 5: Solve for x
    x = 3,012,203.94/2,382.06
  6. Step 6: Final answer
    x = 1,264.54

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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.