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Finding the Fourth Proportional to 2,182.64, 3,273.96 and 1,029.20

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Solution

The fourth proportional to 2,182.64, 3,273.96 and 1,029.20 is: 1,543.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.64 : 3,273.96 = 1,029.20 : x
  2. Step 2: Convert to fraction form
    2,182.64/3,273.96 = 1,029.20/x
  3. Step 3: Cross multiply
    2,182.64x = 3,273.96 × 1,029.20
  4. Step 4: Simplify right side
    2,182.64x = 3,369,559.63
  5. Step 5: Solve for x
    x = 3,369,559.63/2,182.64
  6. Step 6: Final answer
    x = 1,543.80

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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.